Heres an example of "Holy Tits!" in a conversation Jimmy: "Bro, look at him! he's lighting firecrackers in front of that guys house!"
Tom: "Wait, isn't that principal Skinners house?"
Jimmy: "Holy Tits!!!"
The breasts of a nun or other female member of the clergy. This expression is most commonly used when your buddy decides to drive like he is Dale Earnhardt himself.
Josh, "Hey, We shouldgo left!"
-tires squeal as Josh yanks the car into a power slide-
Sarah, "Holy tits!"