You develop an addiction to quesadillas from inhaling to many quesadillas through your nose. This becomes a very dangerous disease as the disease will worsen as you inhale more quesadillas and eventually will crave quesadillas every second and also develop sinus problems.
I conducted resarch at labs at UCLA and a study I conducted showed that inhaling quesadillas will cause you to develop the disease I call quesadillaitis.
by Dr. Heber September 24, 2010
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Ejaculating into a girl's mouth in such a way that it looks like a quesadilla with extra cheese.
I gave her a good Quesadilla last night.
by erbzzz69 October 04, 2018
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Melted cheese between two tortillas. Other stuffings are optional, such as chicken. Can also be made by simply folding one tortilla in half.
Man, I took a gravity hit, then ate a huge quesadilla.
by Rusty Shakelford December 23, 2004
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It's what gringos call that yummy mexican treat with melted cheese in a torilla.

Also see "Dilla"
Napoleon, just make yourself a dang quesadilla!

by Casey Young June 26, 2008
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