An interjectional word used if something
is funny, cool, or even really lame. Originally
used to denote sarcasm
or that someone was a square, but evolved into
functioning at the end of almost any sentence.
Yea brah, that Asian girl last night was a real looker... Sha!
(example of early stages
of word use)
This ham sandwich
tastes great, sha!
(example of a valid present day use)