Definitions by Gary Grigg

yo-yak 

Noun..one who is an idiot or moron that thinks they are smart or cool and is very stubborn and will not acknowledge that they are..

That person is such a yo-yak for thinking he can drive his 4 by 4 into a 6 foot snow drift only to go into a ditch.

yo-yak by Gary Grigg January 8, 2005