What is Taco With Secret Sauce?
1.
The act of shoving a taco (hard or soft, preferably soft for safety reasons) up ones (man or woman) booty hole and them shitting the taco back into the mouth of the taco shover
"dude, i was totally getting nasty with this chick and she made me eat her taco with secret sauce"
Girl/Guy: "May i take your order?"
girl/guy: "yes, id like your taco with secret sauce"
See