Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- interj. Slang Used as a greeting or to attract someone's attention.
Century Dictionary and Cyclopedia
- An exclamation noting effort: usually joined with ho or O.
- A dialectal variant of you.
Wiktionary
Etymologies
- From you're, your, etc. (Wiktionary)
Examples
“I reckons yo 'ain' got _yo'_ horses trained like we-all back yonder got _ours_.”
“Is yo 'goin' back on yo 'gibben word -- _yo'_ -- a Newton?”
“I'll not fight yo, but I'll flog yo -- _flog yo_ -- d 'yo hear?”
“_Yo ka pensé toutt lanmizè yo, -- toutt lapeine yo_," I was answered.”
“Den he must bresh his clothes wid yo 'bresh -- _yo'_ bresh, mind you!”
Colonel Carter's Christmas and The Romance of an Old-Fashioned Gentleman
“And thus Avishing yo "all happy and gspous success Avee end & rest; yo*" assured lo: freinds the GoQno '”
“-- an 'Mester Wharton, he says he'll tak' the post, an 'dea his best for yo -- an', remember, _yo mun have a gentleman_!”
“I'm the one to trust (yeah) We belong together Ne nun eul bwa yo OH gu de man eul mi du bol le yo Me eel hon ja su ool gi man ha ne yo Nuh moo na go ma oon gul yo OOH BABY BABY nal ahn ah hu yo Ee de ro yung wun hee ham ke he yo (WE BELONG TOGETHER, UH) Ji chin gu de ne ge gi de do dwe yo Un je na gu del sa rang hal le yo~ (LET'S GO!)”
“yo ah yo ah yo ah yo~! your kan zehzeh ish lao ah lians ahr?! ai yo mai yo ai yo~”
“I tell yo ', Nella-Rose, if _yo'_ say thar war three dozen aigs, thar _war_ three dozen aigs, an' we'll bargain accordin '! ”
Lists
These user-created lists contain the word ‘yo’.
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one word exclamations
keep it rated G please, thanks!
( open list, randomness )zoiks, sheesh, gosh, shucks, jeez, woot, heck, thunderation, oops, gadzooks, what, hey and 90 more...
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Words Heard Too Often In Songs
Words overused in modern pop music.
Also see ruzuzu's list: Words that should be heard in songs more often.love, heart, dance, dancefloor, down, take, want, night, fight, baby, like, ooooh and 136 more...
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Surreyjack lingo
The Surreyjack lingo described in "How to talk like a Surreyjack"
http://www.youtube.com/watch?v=enC5LPSP40g
apparently...fawk, yo, yoooooooo, haactic, hundeez dundeez, buddyyyy, tulleeed, fawkk, buddyy fawkk, haamsceeneee, chrome, hundeez and 22 more...
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Interjections spelled with only H's a...
ha!, aha!, ho ho ho!, hee hee!, oho!, uh-oh, heh, heh-heh, oh, ah, huh, eh and 12 more...
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Grunts, Sounds, Calls
Aah, achoo, ack, ah, aha, ahem, ah-ha, aw, baa, bah, blah, boo and 64 more...
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Are you from Pennsylvania?
List contains answers to the question: Are you from PA?
gum band, stillers, pahrits, sticker bush, crick, yinz, yoose, ohia, jumbo, knows the differe..., i can pronounce w..., sammich and 41 more...
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Vowels only. And I mean: ONLY
Words containing no consonants and found in at least one major dictionary.
Foreign words permitted.aa, eau, oui, aiee, I, oo, euouae, eye, you, ye, yo, yay and 17 more...
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Words that are fun to say
gerbil, spleen, rickshaw, ripley, crevis, you, po, hermes, girl, yo, reality, grockle and 8 more...
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Twitter favourites
The new favourite words of people on Twitter.
A script searches Twitter for "X is my new favourite word" and adds it to this list.
See also:
bumwank, calamity, recalcitrant, gayenese, jeeze, nonsense, flabbergasted, juxtapose, procrastinating, ossanity, biffing, loser and 1972 more... -
Twitter favorites
The new favourite words of people on Twitter.
A script searches Twitter for "X is my new favorite word" and adds it to this list.
See also:
grabbable, retuiteando, leaving, fantastic, absolutely, kurwa, hella, ridic, underpass, hate, interlude, plush and 2369 more... -
indianyogi's list
double entendre
sizz-water, indian, yogi, india, yo-yo, any, ian, dia, gi, yo
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Mafufu's Words
bespeak, salterello, pants status, persephone, crochet, abada, yo, mellifluous
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curligirli0's Words
crapulous, swish, shiatsu, zen, xenoglossy, nincompoop, loquacious, pianissimo, onomatopoeia, imperturbable, silky, hosanas and 379 more...
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Jamaican patois
"I and I plant the corn..."
i and i, rudeboy, ragamuffin, youth, dem, jamrock, jamden, fat 'matic, likkle, tuff, whe, inna and 132 more...
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Cross-language non-cognate homographs
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Acceptable two-letter Scrabble words
aa, ab, ad, ae, ag, ah, ai, al, am, an, ar, as and 89 more...
Tweets
Looking for tweets for yo.

milosrdenstvi Philadelphians are fond of it as well. Haven't lived there since I was young but I keep it up out of nostalgia. Jan 23, 2010
carriwitchet Us New Yorkers say this all the time. I used to think it was the British exclaimation, "oi!" pronounced backwards and refined. Scary thought- in 50 years, people will be using "lol" as an acceptable 3 letter word for Scrabble. Jan 23, 2010
thishannah fun fact--"yo" originates from the 15th century! Apr 21, 2009
mafufu Pimpin'. Mar 13, 2009
sakhalinskii Awesome comments. :P Jul 30, 2008
reesetee Got that right! Or something you yell at someone who's just about to hit your car. Or to someone you recognize on the street. Or to the soft pretzel vendor. Or to...well, you get the idea. :-) Nov 2, 2007
mollusque A term of endearment in Philadelphia. Nov 2, 2007
john A yo is half a yo-yo. Dec 4, 2006