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1.
The Act Of Beating Your Penis on someones Face.

Term used in the Ghetto in the city of Laredo, Texas.
lil Luis: Lets Call Monica?
Erick: Sure why not?
*later on*
Lil Luis: Hey Where Did You Go?
Erick: Oh, I Gave That hoe A Winaso!
lil Luis: Doode i got STD's From doing that
by Arnold Awesome! January 30, 2009
 
2.
(wee-nah-so)

–verb (used with object)
1. to strike sharply with a phallic object, esp. with one's own semi erect penis.
-noun
2. a sharp, resounding blow with a phallic object, esp. with one's own semi erect penis.
-verb
1. If you don't get up and make breakfast, I'm gonna winaso your ass!

-noun
2. My girl wouldn't wake up to make breakfast, so I gave her the winaso!
by Victor L. February 24, 2008