Louse up

Definition 1 of 1

Pro Tip 1/3

Casual Usage

Use 'louse up' in informal settings, like conversations with friends, not in formal writing. Slide

I hope I don't louse up my speech in front of everyone.

Pro Tip 2/3

Negative Outcome

'Louse up' implies a mistake leading to a negative result, showing disappointment or frustration. Slide

He really loused up our chances of winning the game.

Pro Tip 3/3

Colloquial Origins

Originates from 'louse' being a pest; 'louse up' metaphorically means making a situation 'pest-like' or troublesome. Slide

Don't louse up your room by leaving dirty clothes everywhere.