Marks on each side of your mouth from having your face buried in the "trench" of a vagina for long periods of time
By the time she got out of jail she had a bad case if trench mouth from having her face buried in cunt so long
Terrible bad breath! The kind that is so horrible it makes others turn away when you speak to them.
Bob's trench mouth made my eyes water.
the condition of post-cunnilingus mouth funk
I need a breath mint before I go back to work. I've got Mariana Trench mouth.