Green’s Dictionary of Slang

bomb adj.2

(US campus) a general pej.

[US]Hope College ‘Dict. of New Terms’ [Internet] bomb adj. A person who does not meet your standards because they are not good looking, do not use the right slang, did something to offend you, etc. ‘That guy over there is so bomb. Those clothes he’s wearing haven’t been cool since the ’80s.’.