performing oral sex as the payment for goods and/or services
The girl mouth bartered her way into getting a good grade.
When you buy a new style Dr. Pepper and she accuses you of cheating with her mate
I was walking your friend home and this is how you treat me so Don't look a gift horse in the mouth
n. Anus
Are you experiencing pain in your out-mouth after your visit to the proctologist?
n. Anus
Is your out mouth feeling better after your visit to the proctologist?
When someone jizzes in your mouth and it feels bubbly and fizzy afterwards
"Man my mouth feels fizzy after I gave Tim that blowjob"
"Sounds like you have soda mouth"
When you're having a mmf threesome go to the girl's mouth while she's moaning and move your penis up and down and she'll make a sound similar when you move your finger against a baby's mouth
Dude 1: Dude, my girlfriend hates you now because of the threesome earlier? What the fuck did you do?
Dude 2: i only did the Baby's Mouth on her, whatt ge fuck is she mad about?