n. This is a shortening, and an English bastardization of, the word tortilla. Tilla still refers to the delicious flat bread used in Mexican cooking. Most notable is the change in pronunciation: Tortilla (tore - tee - yuh) vs. Tilla (til - uh).
I got crazy last night and made a two-tilla quesadilla.
Nothin's easier than wrappin beans and cheese in a hot n' tasty tilla.