Definitions
Wiktionary
- pro. idiomatic, colloquial, chiefly UK Plural of you.
Examples
“At least, you lot will, while I call the step and look after remounts.”
“It'd be useful if you lot did a little more communicating, so we weren't approaching this blind-maybe put out a newsletter or something.”
Lists
These user-created lists contain the word ‘you lot’.
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You, plural
"You" used to be plural only, but since we lost "thou", "you" has to do double duty as both singular and plural. This can lead to confusion.
Happily, alternative plural pronouns are av...you, you all, y'all, all y'all, you guys, yinz, you lot, youse guys, youse, y'uns, all y'all, kalian and 4 more...
Tweets
Looking for tweets for you lot.

chained_bear I have a friend who says "you lot" frequently and I find it endearing. Jun 19, 2009
qroqqa The closest my vocabulary gets to a specifically second person plural pronoun. It, as well as 'you guys', which I would accept in my dialect but don't say, is of a peculiar structure: the 'you' isn't simply the determiner function before a common noun (as in 'you students'), because (i) we freely say 'we students' but not *'we lot', and (ii) determiner 'you' seems to require a plural noun, not a group word: *'you group', *'you crowd'.
However, although 'you lot' has a certain pronoun-like quality, the 'lot' is entirely optional. A true pronoun would be fused and grammatically controlled like 'yourselves', which is in most positions not interchangeable with 'you'. Jun 19, 2009