Flib Jib 

The name given when attempting to fit your penis into somebody else's belly button. Ejaculating upon entering a belly button is considered an 'Awesome Flib Jib'

The last time i saw Jenny, I was so tempted to Flib Jib her.

Flib Jib by Mishka-Moondog August 31, 2012

flibjib 

Something you say when something you expect to happen doesn't.

"Flibjib yo!, I thought I monkey was going to bust in the room!"

flibjib by Walter September 24, 2003

Flibjibba 

This word means to finger and or lik a gurl (this is good to use when around a girl because they dont know what your on about kinda like a code)ebenjay

Yo last night i flibjibba my gf

Flibjibba by Mikie rahhh mait April 1, 2007