dup

someone who is an idiot or doing something idiotic or even looking like an idiot

synonyms for the word "dup" : dumb, stupid

can also mean when someone has a delayed reaction to something

"why you being a dup"

"don't drink too much or else you'll start looking like a dup"

dup

Derivation from the word whadup, as in what's up/wassup. Quite handy when chattin.

A: "Ajo Ramooo"
B: "Dup"
etc...

dup

Australian slang for the Downwards Uber Punch. Shortened to DUP, or dup, it is a type of punch achieved by balling up your fist and swinging your arm downwards onto a victims head or body part, keeping your elbow bent and snapping your wrist down as your fist connects with flesh.

I'm ganna dup the cunt in the balls!

dup

The word used when you first meet a person.

1st person: dup??
2nd person: dup!!

dup

combination of "duh" and "yup"

dup!!

dup

When one proceeds to obtain a strike in bowling.

Yeeeehawwwww I GOT DUP!!!!

Dupping

To violently upper cut a vagina.

I walked into a room at a house party in college, and saw a guy violently upper cutting this chicks vagina. She loved the dupping she got.