shudafukup 

shut the fuck up ... or I will kill you

If your friends are pissing you off just say "shudafukup"

shudafukup by Kevin Paul March 11, 2007

SHADAFUQUP 

'shut the fuck up', but intensely bold and cutely concise.

Person 1: 0migawd pls do NAWT tell him dat ; r0fl lmfAO lolzsss xPPP

Person 2: SHADAFUQUP

SHADAFUQUP by woopsey July 30, 2013

Shudufukup 

Shut your fucking mouth.

I wish that bitch would shudufukup

Shudufukup by Bollocks McArthey July 31, 2003

shutdafuckup 

To "Shut the fuck up"; cease blabbering

Bitch, shutdafuckup and suck my cock.

shutdafuckup by bah June 19, 2003

shuddafuckup

A phrase that has been shortened to two syllables, meaning shut the fuck up mainly used to annoy friends by saying it non-stop whenever they try to talk.

Amanda: Hey, guess what I did today, I went -
Alex: shuddafuckup.
Amanda: you shuddafuck up!

shuddafuckup by Amanda Is Cool January 18, 2009

shufukup 

When you mispronounce shut the fuck up because your anger is seething.

Shortened way to say shut the fuck up.

"ugh i hate you stop talking"
"no"
"shufukup!"

shufukup by hamalamadoobalabadibup August 21, 2021

shuddafuckupyoufuckenretarded 

to show someone how stupid he is.
aspecially like matthazan

shuddafuckupmatthazanyoufuckenretarded!
this houldnt take you more than 2seconds to say!

shuddafuckupyoufuckenretarded by zi zi wang April 16, 2005