Da Fightin Irish
Da Fightin Irish is when someone eats a guy out with one hand on his cock and the other hand shoving a fist up his butt, making it look like the mascot was getting trampled.
My brother did it to his girlfriend and she screamed like a banshee.
I saw it at a party and it made the whole room laugh.
My friend’s uncle did it to his brother and it looked like a war broke out.