noun \ˈbak ˈtä-kō\
A synonym for the anus.
"I took a really big shit and hurt my back taco".
by UndeadWhiskey July 20, 2013
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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!
by Jkcoughman June 24, 2017
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