Definition of in deep shit (or in the shit) in US English:

in deep shit (or in the shit)

phrase

vulgar slang
  • In trouble; in a difficult situation.

    in difficulty, in difficulties, having problems, in a mess, in a bad way, in a predicament, in desperate straits, in dire straits, heading for disaster, heading for the rocks, with one's back against the wall
    View synonyms