To look up the definition of something.
Hey what does extemporaneous mean?
I don't know let me go grab a def!
mug-ception
it says “ get the get the get the this def on a mug mug on a mug”, right?
why are you searching “ get the get the this def on a mug mug” on urban dictionary? don’t you have homework due?
making sure your friend is alright when away throwing up
yeah I'll go check on Bobby. I'll do a slow def check after my smoke.
The act of fucking a fat bitch, or a skinny emo slut in the ass while dressed as a 80's hair metal guitarist listening to Def leppard, and doing a line of cocaine while when reaching the climax pulling out to bust a load on her tits, or ass yelling "POUR SOME SUGER ON ME!!!".
Tom: What did you and Kerry do it last night after the mötley cüre reunion show?
John: dude I Def lepparded her asshole.