A lump on the head resulting from running into something or falling and hitting your head.
Alberto fell off his platform shoes and hit his head on the floor. That was one big chichon! aka Tremendo chichon!
by wendita July 23, 2008
a womans breast. Usually used when they are nice and big
John: Dude do you know Vanessa?

Brent: Heck yea dude her Chichons are freaken nice!

John: I know right, they look like D's to me
by Jzero15 February 02, 2011
Act of attempting to harness ninja like powers to perform acts of stupidity in the presence of others.
They got drunk and did a chichon.
by Carlos April 13, 2005

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