PEF 

Pre Ejaculatory Fluid

I saw your sister and I got a little PEF in my pants

PEF by DeadzeroCustom September 4, 2003

PEF 

Post Eating Fatigue - the tired feeling experienced after consuming a large amount of food.

Can be used as a noun, verb or adjective

Noun
I have a serious case of the PEF

Verb
I am peffing out mate!!

Adjective
You are looking quite pefly

PEF by kyranc November 2, 2011

pef 

post ejaculatory fatigue!

R - hey V wanna go out?
V - can't man. Serious case of pef.

pef by Megadavelover January 21, 2009

PEF 

PEF stands for Post Exam Fever. The sickness that many people get after or before exams.

Teacher: Where is Harrison today?
Student: He's got a serious case of PEF

PEF by duck_god17 November 20, 2014

PEF 

"Pussy Eating Fool"

He got a tattoo that stated he was a "PEF"

PEF by Kemo Sabi November 21, 2016

Sir Pef 

A permabanned IGN user who is known to use many accounts to back himself up. He uses his alt accounts to talk to himself to make it appear as if people are agreeing with him, which everyone else knows he is being an attention whore. Pef is the biggest loser on the NASCAR board. He likes to call people mental midgets, but compared to his microscopic brain, everyone looks smarter than he is. ONLY a retard needs to back himself up.

If I got a WUL from all of Sir Pef's alternate accounts, i'd be a WULionaire!...There goes pef on another one of his accounts.

Sir Pef by a912 January 6, 2008

Deh, pefforza 

"Deh pefforza" is an expression used and created by Volpescu(also known as Vompescu Twonch), an italian Twitch streamer. It is used for indicate something that will happen surely, or something that is undebatable for who is speaking.
It can be used also without a context, for strengthen a fact or whatever.

A-"Urasawa è un maestro?"
B-"Deh, pefforza!!"

Deh, pefforza by Davyhh June 22, 2021