Also commonly referred to the classic catchphrase of the notorious "Lightning McQueen", kachow is a term that is used as a reference to when a man sneezes while taking a piss resulting in a "KACHOW". A kachow can only be avoided if the victim starts to force his piss stream to a higher PSI, or just holding in the sneeze.
Jim: Kachowwww!
Debbie: (walks into bathroom) What Jim?
Jim: I fucking sneezed while pissing, what else would it be?
Debbie: Kachow?
Jim: Fuck you Debbie, no one likes you.
by BLACKDADDY4LIFE July 12, 2017
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Lightning McQueen's catchphrase in Pixar's latest animated film, Cars.

Lightning McQueen: Ka-chow!

*poses for the cameras*
by EsbenT September 01, 2006
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A word used when people are sometimes a little crazy.
Justin and Nicolas both yelled KACHOW! Upon entering the room
by The Mexican supplier January 04, 2018
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When you're about bust a nut in her mouth and whisper in her ear "kachow."
Becky: *Sucking Juan*
Juan: *about to bust a nut and whispers in her ear* "kachow"
via giphy
by StultifiedJohnny July 25, 2017
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