fun4fun 

1.The act of having fun just for the sake of having fun.
2.Something made just for the purpose of being fun.

1."Marylin is being really fun4fun and it's creeping me out."
2.I've decorated my game room in fun4fun style.

fun4fun by Kaiine Joshua Sims January 1, 2008

funfundfunfzig 

the number 55 in German.
it is also fun to say.

i can count to funfundfunfzig

funfundfunfzig by hey hi how ya dur'n April 11, 2010

Funfunf 

A word meaning "fun" in a sarcastic tone.

Friend 1: "My dog died.."
Friend 2: "Funfunf!"

Funfunf by Nick_Gr33n October 4, 2008

FunFun

A word originating in a special school for special children. It was first said by a certain Russian child who's name will be unlisted for the sake of anonymity. Since then, it has spread throughout many of the school's occupants, one of the humanities teachers commenting that the user sounds like a chipmunk on helium.

"And so, Julius Caesar was stabbed to death in the senate by his friends, who feared he was rising to the title of king."
"Funfun!"

----

"Haha trolololol! What do you have to say to THAT?"
"Funfun!"

FunFun by TorchwoodArchive December 30, 2011

Funfunnel 

A word describing the female sex organ. It can be used to describe a female sex organ that is overused.

"Did you hear that Neil put it in her funfunnel"

Funfunnel by Scousers01 December 16, 2017