Definitions by Wereboke

CATO 

Critical Attack To Opponent.

In Dungeons and Dragons, the act of rolling a 20 sided die(d20) and landing on the 20. This means you really fucked up the opponent.

Marty rolled a CATO on that wizard,
I totally CATO'ed your mom's ass last night.

CATO by Wereboke September 2, 2005