When a lactating nipple projects milk in three or more directions at once. Usually a result of careless nipple piercing. Handy for mothers with triplets.
"Tucker, will you get the bucket, I'm feeding Cutter and Gunner again and I've got a trevi fountain going! I wanna save some for daddy's ovaltine."
by Rich Enrico Kunesh January 20, 2009
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Action of when a women is about to climax ( preferably fountain, can be pee too ) Will stand up grabbing a handful of change, screaming "MAKE A WISH" while cuming on her partner and throwing change on him.
"Hey John, what's that knick in your face?"
"Ho, Mary decided to pull a Trevi fountain on me yesterday"

"Ho ...."
by DrainDaBrain March 09, 2020
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