OMGWTFUN 

Oh My Gosh What The FUN!!! :D

Ashley: Hey guys want to go on that roller coaster over there?
Krista: OMGWTFUN! :D Let's GO!
Ashley: YAAY!

OMGWTFUN by ipwnusuk June 2, 2011

OMGWTFUSOB 

Oh my God what the fuck you son of a bitch.

OMGWTFUSOB! you ate the last cookie!

OMGWTFUSOB by Joker_boy12259 March 29, 2011

omgwtfurmom 

The most awesome acronym (kinda an acronym).

omgwtfurmom! thats amazing!!

omgwtfurmom by ChiperZZ December 15, 2007

omgwtfNOTPOSSIBLE

in the online-based community, this phrase is used to express extreme objection to a claim.

Often used by loyal fans of a site, character, user or other fandom-related entities do dispute a comparison or implication of equality or superiority.

Stephenie Meyer, author of the Twilight books, is America's J.K. Rowling.
omgwtfNOTPOSSIBLE.

omgwtfNOTPOSSIBLE by chelseyjane June 10, 2008