1. A tightly packed, layered, and folded outer leaf of rotting iceberg lettuce included as an inedible topping to an In-n-out burger. Distinguished from the cool, crisp, "hand-leafed" piece of lettuce usually included with your fesh, tasty burger.

2. Any epicurean abomination.
You: I can't wait to sink my teeth into this tasty Double-Double.

Me: Oh man! A lettuce wad! I can't eat this now. Can I have yours?
by drJJL April 18, 2010
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