Commonly used to describe a change in surroundings by phrases such as 'going fish out of water' or 'to go fish out of water.'
In this sense, the meaning is similar to the term 'Slippin' meaning to leave one's usual abode/habitat to enter next manz endz.
Brare 1: Yo blud come we roll down (enter endz of choice here), still.
Brare 2: Rah!!! Allow goin' Fish out of Water down dere blud, manz gonna get merked ugetme?!
Brare 1: Oh yes, I suppose you're right old bean. Silly me.
"Larry the Cable Guy must have had a bad experience. I think he always carries that fish hook on his hat as a fishoutofwater prevention unit."