v. When a person, typically a male youth, overcompensates for low socioeconomic status by listening to hard rock or rap and getting tattoos, attempting to portray himself as an alpha male, when in fact he is subservient in the business world due to his poor education and low IQ. He is, in essence, socially and economically subservient, despite his outward rebellion. Hence the phrase: his cheeks are in the air.
Bob: "That dude is always trying to act hard, but he's stuck in this fast food joint working for the man with his cheeks in the air."
When you are trying to make fun of someone for being bad at something instead of saying, " you suck" you can instead say," Boi you donkey cheeks!" Therefore implying you are so ass at something you are ass compared to an actual ass's ass.
Boi you are donkey cheeks at touch football you couldn't catch the ball if it were the size of a watermelon.
When the crack of one's ass gets coated in wet fart residue or one fails to clean well after taking a shit.
Fat Rhonda said, "oooo my checks are sliding well today. I am not getting that chafing any more."
Aaron responded, "Yeah, I can smell your greasy cheeks from here. Go take a shower Rhonda."