What is Shi-shi?
1.
Used to define someone or something that is unattainably sophisticated. Uber chic, a step up.
"This restaurant is so shi-shi!"
See
2.
Shut it! Shut ya mouth!
CEO: The server is down, when is it going to be up again?
MIS: Shi-shi, oh well 2 tears in the bucket. Shay-Shay