Try-Hard

Someone who 'tries' too 'hard' to present themself as their idea of "cool", oblivious to the fact nobody else feels that way about their expression, instead coming off as corny / cringe-worthy. This might be a dude doing a burnout while driving past a group of unimpressed girls, or a pampered middle class youth displaying the gestures and sentiments of a hustler.

Person 1: "Did you see Kevins instagram post fronting like 'mr money' with like $80 in his hands?"
Person 2: "Yea I tried not to say anything... that's barely 1 days work... he's such a try-hard"

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Person 1: "checkout that try-hard with the frosted tips and Guy Fieri shirt.. oh wait that's actually Guy Fieri"

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Person 1: "Rob deliberately turns his music up like a full try-hard when driving past people dude, he thinks he's so cool"

Milk Chugger

A derrogitory label, the 'milk chuggers' are the dorks likely to be racing one another at the cafeteria to down their milk while their voice-cracking, acne covered friends pound the table and chant "chug chug chug". This doesn't restrict the term to those who chug milk, it's more of a general vibe. They'll be the first in line to do the next brainless challenge on social media, or a daring act of public cringe.

"That total milk-chugger Kyle just played S.O.A.D through the schools P.A system and all his lame friends are in hysterics".

"Those milk chuggers over there, the one with the least pimples.. i guess he's their alpha, just hit on jane and called her a fugly hoe when she rejected him and now they're quoting Monty Python and drinking monster".