verb
- past tense of louse: to make a mess of something; to ruin or spoil
Usage: informal
Examples
- He loused up the presentation by forgetting his notes.
- The rain loused our picnic plans.
- She loused the recipe by adding too much salt.
- They loused the whole project with poor planning.
- Don’t louse this opportunity by being late.
- The computer virus loused up all our files.