Green’s Dictionary of Slang

1. (US campus) to pretend [perpetrate v.].

1997–2001		Online Sl. Dict. 🌐 perp v 1. to pretend, feign. (‘He always perps like he has a lot of money.’).
1997–2000		Da Bomb 🌐 21: Perping: Perpetrating, pretending. Are you perping like you’re hurt?
2000		Ebonics Primer at www.dolemite.com 🌐 purpin Definition: truncation of the word purpetrating. Example: Man nigga why you purpin??

2. (US) to commit a crime (against someone) [perp n. (1)].

2001

J. Stahl Plainclothes Naked (2002) 113: He couldn’t just watch her get perped by a bunch of tanked-up skeeks.