The phrase "fucking shit" is a vulgar expression used to convey strong frustration, anger, or disappointment. It is a crude way of expressing extreme dissatisfaction with a situation or something undesirable.
Sentences with «fucking shit»
You can't understand how fucking shit it is to have your emotions reduced to aggression. (dazeddigital.com)
This guy better not fuck shit up over there. (n4g.com)
Unless he went like nurm and just tried to wrestle fuck the shit out of him. (sbnation.com)