What is Shittest?
1.
When a bitch tries to act like a man and tries to see if he'll do ridiculous things for her or what his boundries are.
Bitch1)Baby will you hold my purse while I go flirt with another man?
Bitch2)Wow, I can't believe that so called man failed your shittest.
See
2.
The very pinnacle of being
Example in conversation:
Guy 1) "Did you hear Mike dumped Claire?"
Guy 2) "No way, when?"
Guy 1) "On the same day her dad died"
Guy 2) "Christ...that's the shittest thing ever"
See