chain yawn 

A yawn that travels throughout the room and is able to affect everyone that notices the previous yawn which causes them to yawn as well.

Joe says, "Oh noessss, I'm about to yawn!"
His friend Jessie replies, "Oh damn, we're sitting in H&M with all these people around, a chain yawn might go off!"

chain yawn by iLL iZZY April 6, 2008

Chain-yawn 

Yawning more than three times in a row. Chain-yawning had been known to continue for hours left untreated.

Strings made me fucking chain-yawn, motherfucker.. oh shit.. *yawn*

Chain-yawn by inanity March 19, 2008

yawn chair 

An extremely comfortable chair such that when one sits in it one falls asleep.

Sorry... I didn't mean to dose off there. This chair is just too damn comfortable. I either need to stop drinking so much or you've got yourself a first rate yawn chair.

yawn chair by originofscience July 10, 2011