Similar Words to Louse Up:

Ball Up
Blow
Bobble
Bodge
Bollix
Bollix Up
Bollocks
Bollocks Up
Botch
Botch Up
Bumble
Bungle
Flub
Fluff
Foul Up
Fuck Up
Fumble
Mess Up
Mishandle
Muck Up
Muff
Screw Up
Spoil

Examples:

1. Because I was afraid I'd louse things up for you because I love you.
2. Some louse, just as we blew into town.
3. She's gonna louse me up down the line.
4. W ell Even a louse would go away.

Definitions of Louse up:

1. Make a mess of, destroy or ruin