A perf is when you hit a perfect bhop in csgo which will give you a large amount of speed, if you see someone bhopping with more than 5-8 perfs multiple times in a game it's safe to assume they're hacking since it's a really small chance to hit even 3 after eachother.
"I just hit 6 perfs bro I'm hacking"
Short for perfect. A common response to plans that slay girlies use.
Friend: wanna get our nails done at 2?
Me: perf! C u there! ;)
P-pretty
E-effin
R-really dumb
F-fuck me now
Youβre perf (pretty effin really dumb fuck me now)
Sarah Lewter
That girl is so Perf.
Probably not because she's not Sarah Lewter.