louse up
verb
loused up; lousing up; louses up
transitive verb
: foul up, snarl
intransitive verb
: to make a mess
Synonyms
- blunder
- boob [British]
- err
- flub
- fluff
- foul up
- fumble
- goof (up)
- mess (up)
- screw up
- slip up
- stumble
- trip
See all Synonyms & Antonyms 
Example Sentences
everything is riding on this project, so we can't afford to louse up I loused up the wallpapering job in the bedroom—the seams show too much.
Word History
First Known Use
1934, in the meaning defined at transitive sense
louse up
verb
1
as in to slip up
to make a mistake everything is riding on this project, so we can't afford to louse up Synonyms & Similar Words
Relevance
- slip up
- screw up
- fumble
- stumble
- trip
- foul up
- drop the ball
- blunder
- err
- lay an egg
- goof (up)
- nod
- fluff
- boob
- mistake
- flub
- misunderstand
- misdeem
- mess (up)
- murder
- botch
- foozle
- muff
- misgauge
- bungle
- mangle
- misjudge
- butcher
- misconceive
- misconstrue
- bobble
- misinterpret
- miscue
- miscalculate
- miscount
- mishandle
2
as in to fumble
to make or do (something) in a clumsy or unskillful way I loused up the wallpapering job in the bedroom—the seams show too much Synonyms & Similar Words
- fumble
- screw up
- muck up
- blow
- foul up
- ruin
- murder
- boot
- botch
- dub
- boggle
- destroy
- goof (up)
- spoil
- bollix (up)
- muff
- butcher
- bungle
- mar
- fluff
- mangle
- bobble
- damage
- flub
- bumble
- foozle
- bugger (up)
- mess (up)
- injure
- wreck
- hurt
- muddle
- blunder
- harm
- flaw
- gum (up)
- impair
- blight
- mutilate
- piffle
- vitiate
- blemish
- mismanage
- mishandle
Antonyms & Near Antonyms
- improve
- better
- help
- enhance
- refine
- ameliorate
- remedy
- reform
- rectify
- patch
- fix
- repair
- renovate
- meliorate
- revamp
- doctor
- recondition