Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- v. Slang To infer or discover; figure out: "I think I'm good at sussing out what's going on” ( Ry Cooder).
- v. Slang To size up; study: "Suss out the designers in whom you are interested” ( Lucia van der Post).
Century Dictionary and Cyclopedia
- A variant of soss.
Wiktionary
Etymologies
- Probably short for suspect.
Examples
“Sometimes it's even people you're working with - but you kind of suss out which ones are the baby demons.”
“It helps if you can "suss" out the academic culture and get a feel for what things are like in that person's office, etc.”
“What you see here are some fun drawings done in charcoal, which I love doing, that just kind of suss out the directions of the art.”
“The Portuguese are paying 1. 75% more than the Germans and indicates that the markets see them as less 'suss' to lend to nowadays.”
“Education and learning You know if someone's a bit 'suss', they're a bit suspicious, right? what about when you”
“Bonus points if you can suss out the rather strained relationship between the man pictured to the events on this episode.”
“During oral arguments, justices tried to suss out whether attorneys believed the court was ruling on behalf of all districts in the state—or just the 31 so-called former Abbott districts identified over the years as being poor, highly taxed, failing and/or serving a large population of students who need extra resources.”
The Wall Street Journal: Court Decision Could Upend N.J. Schools
“That information will help you suss out how capable she is of handling all the responsibilities on her plate.”
“Can they suss out a good song if their ears are bleeding?”
Kara DioGuardi on Platinum Hit's Bad Singing Problem, Plans for More Post-Idol TV
“So much is left to your imagination that a goodly portion of the drive home was spent in trying to suss out what kind of race the aliens were, and how they got into this situation in the first place.”
Spending Time in “District 9″ - Aaron’s review » Scene-Stealers
Lists
These user-created lists contain the word ‘suss’.
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Surprising four-letter words
I imagine most of these will be Anglo-Saxon, not likely to crop up in the average day's conversation, and thus excellent for Scrabble. ("most" is too common, likewise "will" and even "crop", in an...
blet, quim, clit, buff, sire, wiki, blog, loam, waft, heft, mare, lilt and 68 more...

cxkang Also made popular by the Radiohead song, "High and Dry"
not really used in my neighborhood Apr 22, 2009
oroboros "But the truth was out for all to see long before the big-name take-downs. For months sourcewatch.org has identified Martin Eisenstadt as a hoax. When Mr. Stein was the victim, he blogged that “there was enough info on the Web that I should have sussed this thing out.�?
--NY Times story about an internet hoax. Nov 16, 2008