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A prolonged but quick "she" sound, with an "ou"-like sound from "ouch". Shee-ou.

Effectively sheow is used in place of "to laugh greatly" or like "lol" to "laugh out loud".

It's for use when an action is in progress and greater than "laughing" or "laughter" - or so I've seen it used.

It's loosely based on the Mandarin Chinese word "xiao"; which almost has a similar pronunciation and simply means "laugh".
"1d10t n00b: Cheese Gromit!
Ruined Name: sheow"
by frozeninforever March 30, 2006
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2
A sheep and a cow
Can I please get a sheow for Christmas

Ok said salty giiiiiiirlllll
by Frishken June 03, 2017
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