This phrase itself is a combination of the terms
Shoish and
Moish. The combination of the terms is primarily used as a reaction response, but the situation in which it's used usually doesn't matter. It can be a response to something surprising, shocking, disappointing, etc.
The most popular use of this phrase is typically a
go-to response or filler phrase to something that doesn't
warrant a lengthy one, similar to the words "sheesh," "damn," or even "wow."
1. *Muaaz clutches on de_dust2* "SOMEBODY GET THIS MAN A CONTRACT,
SHOISH MOISH!!"
2. Damn, bomb down (in CS:GO)!?
Shoish Moish
3. "I just spent 3 hours practicing the smokes.."
Shoish to the mfn
Moish