look up any word, like lemonparty:
 
1.
When you fake your girlfriend into saying you're going to stick it in her pussy, but stick it in her asshole instead.
Kunal's girlfriend was expecting him to stick his rod in her pussy, but he stuck it in her ass while yelling "ANAL SURPRISE!"
by Photik May 30, 2006
 
2.
To give a person an Analsurprise party where he or she has to bend over and all the guests stuff their gifts up his or her anus.

To surprise someone with your hand up their ass.

ANALSURPRISE !!!11
Bend and I'll give you an Analsurprise!!1
by Monkeylovur January 27, 2006