Misspelling of worst case scenario.

(idiomatic) To worsen an already difficult situation or unfavourable set of circumstances, typically by acting rashly, foolishly, or incompetently.

simple past tense and past participle of make matters worse

present participle of make matters worse

Third-person singular simple present indicative form of make matters worse

(idiomatic) To start to become worse; to worsen.

Alternative form of worst comes to worst

(+object) Used to indicate that an unfortunate event, outcome, etc. is of the subject's own doing; and that the speaker feels no great concern for it.

That is or would be even worse.

(of a bad situation) to become even worse