Verb
dirty up (third-person singular simple present dirties up, present participle dirtying up, simple past and past participle dirtied up)
To make dirty; to sully
Zenitsu manages to dirty up the floor on accident, and Nezuko looks after the boy as he retreats. Source: Internet
Yes, you’re going to dirty up a bunch of bowls and spoons and pans and unlike that chic Parisian patisserie whose results you are emulating, you probably don’t have a dishwasher on staff. Source: Internet