1 definition by John Clabby

1. to physically beat someone for no reason at all.

2. to go on a murderous rampage.

See: postal
1. Dude, last night you got so drunk you went all chrisgrosse on Josh and broke a chair over his back.

2. There's a nut with a gun on campus going chrisgrosse.
by John Clabby February 10, 2009
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