A tit fuck involving the use of taco sauce and lettuce as lubricant. The titties therefore create the "taco shell" and it is up to you to supply the meat and sour cream.
PersonA: Dude, what is that smell? It smells like a Mexican restaurant.
Person B: I just recently executed a titty taco, and that sir, is the well-earned smell of victory.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi