Fatty Acid

a distastful person who's rude for no reason; bitchy; makes rude comments; immature people are described as such

(i.e a rude teacher, a friend, a frenemy, or anyone)

Student: Dude what's up with Mrs. H?

Friend: idk man, she's fatty acid right now

Student: i know right? she needs to get some..soon

by justch3ck1n February 04, 2010