The act of covering a penis with a combination of a tortilla, salsa, queso, sour cream, onions, very hot sauce, lettuce, Jalepenos, olives, and re fried beans. Then this persons mate (preferably a woman) has to eat and suck this concauction off only with her mouth.
Dude Karen gave me a Filthy Chalupa the other day.
how was it.
amazing!!

How was your Filthy Chalupa man?
the filthiest chalupa i have ever seen
by erectial dysfunction April 22, 2010
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financial assets set aside for the temporary employment of a lesser whore.

typically used to talk about ones unsavory deeds in public without repercussion.
" Nothing planned this weekend, running low on Chalupa Money."
by otakuwind January 28, 2004
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