When you give a beat down to one of your friends or random stranger. Just like the Taco Bell executive did to the Uber driver
Man I didn't think you were that mad and then I saw you taco belling the hell out of that guy in the parking lot!!!!
A vagina that looks like ground beef hidden deep within a hairy bush (that make it appear as though there may be a penis underneath.)
May also refer to a chode.
Ian, "So did you hook up with Nicole last night?"
Stan, "Yeah I almost died because of her dude beef taco."
Person 1: Hey, do you want some sausage to taco?
Person 2: Sure, it looks delicously arousing.