If you are in a red car and you pass another car, you are obligated to flash your headlights and yell "Kachow!" Or when you get into a car accident.

Yes my dude

A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.

The term that was banned at my school because my teacher looked on Urban dictionary.

when you're too cool

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.

Smacking someone with your semen