when you or someone else has consumed large amounts of alcohol and precedes to have making out with anything with a pair of lips his/her goal
"Man check out that girl over there she's getting all wasty tasty on that crowd"
A synonym for an alcoholic beverage, libation, cocktail, etc. All beer, liquor, and wine can qualify as a "tasty wastie"
After an afternoon of tasty wasties, Maria dropped several F and N bombs at her in-law's house. Needless to say she hasn't been invited back.