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1. Fross
1) To quit following minimal effort; to give up.

2) To give a poor performance due to lack of effort.
Did you even try? Don't fross out on me man.
2. fross
word used for when an individual is high due to use of a substance. word commonly used in Jamaica.
Yow bro, you look fross.

You fross man!!
3. fross
a take on "fugly",

fucking + gross = fross
Tina: Ugh did you see Beyonce's dress last night?
Hannah: Fross!
Tina: I KNOW!
4. fross
when one speaks improperly about their teacher or the other way around
Ex 1: Stacy's totally frossing on Mr. Lee

Ex 2: Mr. Johnson just frossed about Katana
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