(idiomatic) An invitation to a guest in the speaker's home to treat the house as if it were theirs.

(idiomatic) To overcomplicate things, to make things appear worse than they are.

(idiomatic) To eat to excess; to overeat; to gorge.

present participle of make matters worse

present participle of make mincemeat out of

To take advantage of, to exploit (usually a tragic or unfortunate situation).

(idiomatic) to make heavy weather of

(idiomatic) To manage something without difficulty.

(idiomatic) To commit a murder in order to be respected in a criminal gang. / (idiomatic, by extension) To establish one's bona fides; to establish status and respect.

(idiomatic, archaic) To gain advantage or profit.