Petchow 

A trademark for a brand of rat poison. It's so strong, it'll instantly kill any animal bigger than any rat you'll ever see.

Yikes! It's a rat! Get the Petchow! PRONTO!

Petchow by Hank Petchow November 29, 2003

ptchow 

example of onomatopoeia:
Sound of a fake gun being fired

non-victim(its a fake gun): 'hey - what are you doing with that replica gun?'

weilder of fake gun: less talking, more firing. . .'!!PTCHOW!!

ptchow by Lottie:) . .it needed to be defined July 23, 2004

Petchoo 

Petchoo usually comes from a person when they sneeze but can also be used for a simple joke. Petchoo is related to someone who may be a bit 'quirky'. It may be a peculiar way of sneezing but it's a break from 'achoo'

"Petchoo!"
"Oh haha bless you!"

Petchoo by I'm weird af October 17, 2017

Patchow 

A word to suggest something is better than a 'Patchew'.

"Kurt was gonna do a Patchew but it turned into a Patchow and it was like wow!"

Patchow by pilapillapillapillapilla November 1, 2017