yip yay 

Dry, sarcastic expression of faux excitement

Yeoman: We've uncorked the rostrums, Cap'n!
Captain: Yip yay.

yip yay by DKLONE July 31, 2007

yip yay 

A childishly fun phrase one would say during a moment of intense excitement or pleasure

Or as a name for a overly cool and hyper person

Casey: Hey guess what, Jayden asked me out today

Bob: Whoo YIP YAY, thats awesome I guess ya wont be needin that cattle prod anymore...

yip yay by madgreendayfan October 9, 2006