When you are blasting a chick (or a dude)in the ass then you pull out and spit on thier back in order to make them think you have jizzed on them and when they turn around you blow right into their face, preferably in the eye.
Althought it is called a friday night surprise it can be performed on any day of the week.
"I'm gunna give you a Friday night surprise baby!"
"oh you came on my back how surprising, now i'll just turn around to face you."
"SURPRISE BITCH!!!"
by big tommy dickface October 6, 2005
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