To eat someone's Doritos is to make out with them, preferably directly after they have eaten Doritos. This includes the stinky Dorito breath and orange teeth. It is the equivalent of backwash, but with cheddar cheese tortilla chips. Eating ass may be more tolerable.
Girl 1: Ohmigod there's that guy you think is so hot.
Girl 2: Hnnnng, I'd love to eat his Doritos.
Girl 1: Ew, what does that mean?
Girl 2: Eating someone's Doritos means to make out with them even with their stinky Dorito breath and nasty teeth. I'd make out with him whenever and wherever, even if he had just eaten an entire party size bag of Doritos.
by kiraskywalker July 9, 2016
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