dirty up
Add filth to
To dirty up is to make something dirty or soiled: The kids dirtied up the kitchen floor.
It can also mean to make something appear worn or imperfect for aesthetic effect: The set designer dirtied up the props to look authentic.
The "up" adds emphasis or suggests thoroughness but doesn't change the core meaning.
- mess upDo badly, err
- sullyDamage one's standing
- befoulTo make foul
- muddyObscured by silt
- drag through the mudPublicly damage someone's name
make a mess · smudge · stain · leave a mark · pollute · soil · kick up dust · tarnish · dishonor · trash talk · splatter · deface · grime · smear · besmirch · screw up · muck up · defile