A sexual act, prevalent among homosexual males, in which two people violently engage in anal sex. The catcher then defecates on the chest of the pitcher, expelling a mix of blood and feces. The two may then roll around on eachother, "salsa dancing" together.
Those guys were Salsa Dancing all night, now the one can't walk right.
This is a few step process. Step 1, eat greasy food and stomach - disturbances throughout the coarse of a day. Step 2, convince your partner to get in a 69 position with you for intercourse. Step 3, At the end of your little session, when you are about to shoot one out, turn around and diarrhea right into his/her mouth. They wouldve expected something else, but instead you gave them a Salsa Surprise! Hilarious. (Ed. Note - Corn is highly acceptable and even promoted for this certain occurence. Make sure you eat loads full.)
This is awesome...amazingness....know what else is amazing? (Diarrheas in the mouth) A SALSA SURPRISE! Can't go wrong.