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Abbreviation for "won't catch on". It's not going to become popular or gain wide-spread recognition.
Dylan: Hey, let's make up some random abbreviation!

You: Nah man, that WCO.
wco by yooomaaaaa November 30, 2010
Related Words
WCO wcoac wcoc wcol WCOtv
An abbreviation for "West Coast Offense", an offense created by legendary 49ers coach Bill Walsh which has been passed on and tweaked by many in his coaching tree.
A WCO is the offense Gary Kubiak installed to cripple the Denver Broncos prolific offense. He tried to slow down Peyton Manning for years as the Texans coach. He finally accomplished that as the Broncos head coach. Thankfully for Broncos fans the team was able to overcome Kubiak to win Super Bowl 50
WCO by ^sarcasm April 15, 2017
Asking if me and my bros can come over “ we’re coming over “
Aye can me and my bro’s come over, ight we’re coming over you got the condoms ? Wco
Wco by Horny ass nigga 48364 November 6, 2020
This site is WCO.
WCO by nxtort July 19, 2010
Doing something which may lead to collateral damage or just without consideration of casualities.
A: "Let's smoke a lot of marihuana and drink as much alcohol as possible!"
B: "Sure is safe is secure. Today is wcoc day, indeed!
wcoc by effdee November 4, 2008
Wry Chuckle Out Loud - a more literal version of lol provoking less hyperbole.
A: insert joke here
B: wcol
wcol by pinenut January 11, 2009