1 . A combination of the words 'epic
' and 'shit
, usually to describe something awesome
2. A an abnormally large faeces.
(1). Guy 1: Hey man, did you check out those Slipknot tracks i sent you last night?
Guy 2: Hell yeah, that was some epishit right there!
(2) Guy 1: MUMMM?! Can you get the toilet brush, iv done an epishit and it wont flush!