Muckmouth 

Someone who swears a lot.
Can also refer to semen in the mouth of a girl (or boy).
Also a skateboard magazine based in New Zealand.

Alex was wanking in the bath and the jizz landed in his mouth. Bloody muckmouth.

Muckmouth by nobjockey101 October 28, 2008

Milk Mouth 

When you absolutely slam a glass of milk and you get that sightly uncomfortable aftertaste in your mouth for a good minute.

"Bro do you have any gum? I'm suffering from milk mouth right now."

Milk Mouth by ToXiC-S May 3, 2022

Milktooth 

The act of text messaging a teenage girl who is much too young for a man of your age to be texting.

"Bluetooth, my arse! More like Milktooth, she only looks 15"

Milktooth by Big bad Guy June 27, 2007

melmouth 

Lack of white calcium like deposits around the tounge; black nubs, smelly, unsightly; lack of good oral hygiene; breath that smells like a corpse;

Dude if you don't brush your teeth your going to have melmouth.

Yuck! Did you see that women over there. She has melmouth.

I can smell that melmouth all the way over here.

melmouth by pseudonymsaywhat October 2, 2009

milk mouth 

it's where your friend is so ignorant, everything that comes out of his mouth is like mush, and or "bullshit"
this is not cureable, it's also another term for (permafry, idiot, douchebag, etc..)

milkmouth- hey man.
me- wassup?
milkmouth- so uh, uhm. uh, well. uh, yeah dude.
me- oh yes, you're definatly a milk mouth.

milk mouth by therealgabby July 21, 2011

Milkout 

An Australian term for a cold day, derived from being so cold that you can accidentally or intentionally leave the milk out of the fridge without it spoiling.

This term also can be used to describe a rare occurrence, similar to once in a blue moon, as it being cold enough for milk left out in Australia not to spoil is a rare occurrence indeed.

What a milkout day! It must be -2 out!

Milkout by Whatsinaname August 4, 2012

Milkouh

Extra thicc milk from the megalodon shark but is mostly made synthetic by milking the dirty teeth of Lightning Mcqueen.

Girl 1 : Damn girl you fine ass heck. you been drinking that Milkou?
Girl 2 : Yeah! I have been sucking on lightning mcqueens dirty teeth to get that Milkouh.
Guy 1 : Thats poor of you. I prefer to use the real deal from the megalodon shark.

Milkouh by BitchMamba69 January 14, 2019