Definitions by Steveboski

Kool-Yoo 

the mispronunciation of the energy drink Boo-Koo. Mainly of the fruit punch flavor.

"Boys, y'all want a Kool-Yoo to help wake you up?" - Skip
"No, they are all out of date." - Adam

Kool-Yoo by Steveboski July 10, 2010