When you take a nap on your bed, but instead of going under the covers, you pull your comforter over your body, thus making a taco.
Joe: Did you just take a nap in my bed!? I just washed those sheets!
Dave: Relax, it was only a taco nap.
Dave: Relax, it was only a taco nap.
by Arbag February 5, 2010