Acronym standing for "Chuckling Amusingly To One's Self".

Used primarily in text language when replying to a joke that is not funny enough to warrant 'laugh out loud' but makes you smile or chuckle to yourself.
laughter
LOL
chuckle

text
person 1 txt: man walks into a bar....ouch
person 2 replies: CATOS :o)
by mk 2 jag September 06, 2011
Catastrophe At Take Off. A military term originally used to describe the sudden explosion of a rocket-propelled device shortly after it has activated.

The term would later be used in civilian context to decribe the action of anything going FUBAR immediately or shortly after its beginning.
The ICBM CATO'ed due to a faulty fuel management system.
by makoto1 August 02, 2006
She is amazing, she looks great and is super sweet. Cato is someone that you meet and don't regret meeting. Every minute you spend with her is enjoyable. Everyone thinks she's so beautiful although she fails to believe so herself. She has insecurities even with a boyfriend and best friends standing at her side. Over all, some one who you don't want to lose.
Person 1: Wow who is that new girl?
Person 2: I don't know but I really want to meet her!
Person 1: Must be a Cato (:
by MH_97 February 04, 2013
Hot and Sexy..

eclipse and cato. <3
"i'm sexy" - cato
"i'm sexy" - cato
"i'm sexy" - cato
"i'm sexy" - cato
"i'm sexy" - cato
by eclipse March 28, 2005
a houseboy, as in Inspector Clouseau's or OJ's
I need a houseboy to take care of the plants.
by blindspot February 17, 2005
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.
by Wereboke August 09, 2005

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