n.: Vomitus; The result of someone or something having vomited; A pile/pool/puddle/lump of vomitus.
v.: To vomit.
May be used in place of shit for most meanings of that word.
Danny's day was going well until he stepped in the dog-vom.
"Vom!" he cursed as he vommed up his breakfast.
From that point on his whole day turned to vom.
All in all it had turned into the vommiest day of his life.
etc.