A sexual predator dressed up in face paint, a red nose, a colorful fro wig, with floppy shoes.
When I was ten years old I stumbled into a dark alley in the city and saw the Mad Clown, with his sinister grin, running towards me with a squeaky horn and I got the FUCK out of there!
by Timothy Tool September 02, 2004

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Top Definition
adv: 1- to become irate
2- to become psychotic
3- without holding back
i'm going mad clown on that bottle of barton's vodka tonight.
by d-man December 11, 2003

The Urban Dictionary Mug

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