A prank first invented by students at the University Kentucky in which one man comes upon another as he sleeps and begins to masturbate.

Just before climax, the prankster wakes the prankee by whispering his name. When the prankee stirs, the prankster then releases himself into the prankee's eye.

The prankster then usually needs to run for his life.
Did you hear what happened last night? Charlie gave Sam a Kentucky Surprise. He'll be washing that out of his eye for months.
by thatguy212 February 2, 2009
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When you "return" your books back to Chegg rentals at the end of the college semester, but instead of books you fill the box with feces and rig it with a small timer that triggers when the tape is ripped open on the box so shit explodes in a motha' fuckas face!
"Tom, I need to take 15 minutes to towel myself. Some ass hat in Florida just send me a kentucky surprise!"
by Define Deez Baby!!!! April 7, 2016
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