Top definition
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.

How was your Filthy Chalupa man?
the filthiest chalupa i have ever seen
by erectial dysfunction April 21, 2010
Get the mug
Get a Filthy Chalupa mug for your sister-in-law Julia.