Meaning of screw up in English | Powered by Free Dictionary API

verb

• To tighten or secure with screws.

• To raise (rent, fees, etc.) to extortionate levels.

• To raise or summon up.

  Example: trying to screw up enough courage to ask her out

• To twist into a contorted state.

  Example: The baby screwed up his face and began to bawl.

• To squint.

• To make a mess of; to ruin.

• To blunder; to make a mistake.