Back Taco
noun \\ˈbak ˈtä-kō\\
A synonym for the anus.
A synonym for the anus.
"I took a really big shit and hurt my back taco".
Back draft taco
When your girlfriend has a little extra cream on her taco and accidently sharts in her underwear causing it to back draft into the taco.
Mmm... Have you tried Kathy's back draft taco? Smells amazing!