It is heavily implied through dialogue that a character had a one night stand with the Ghost of Christmas Past

Lots of crude humor in songs. Adult innuendo. Some swearing.

Fight at bar during music scene

In outtakes, during the credits, an actor raises their middle finger, 13 anatomical terms (ass) and 18 mild obscenities. There are plenty of rude words.

1 use of damn and tight-ass

In the opening song Molly was sung about and a woman wishing she could drink alcohol again and get crazy like she used to.

A musical scene is set in an old pub. Characters are shown briefly drinking ale.

A drunken mother makes a boy believe his Christmas present (a puppy) ran away to teach him a lesson. The boy is clearly very distraught.

A girl stands up to her drunken mother. The mother lunges at her, clearly threatening violence, but the girl runs away.