verb
- present participle of louse: to infest with lice
- present participle of louse: to spoil or ruin something
Usage: informal
Examples
- The overcrowded shelter was lousing up with parasites.
- He’s lousing up the entire project with his careless mistakes.
- The birds were lousing badly after the wet weather.
- Stop lousing around and get to work.
- The poor sanitation was lousing the camp conditions.
- She accused him of lousing up her carefully laid plans.