A nasty, dirty, toothless prostitute, typically a crack whore or meth whore, that will suck any old dirty dick for drug money. Meat Mouth's may also be marked by herpes cold sores and excessive use of Carmex.
Don: Hey Frank. Let's head home. It's closing time and they are cutting us off.
Frank: Ok. But let's drive through the hood on the way home. I wanna spot that nasty two dollar crack ho. I need me a little Meat Mouth before I call it a night.
Don: Sounds good. Maybe I can get me a Hot Gummy too. But last time she blew me those lips were like sand paper. Hopefully this time she's a little more Carmexual this time.
Origins found in Yorkshire saying 'coal-scuttle in the mouth', though shortened through Cumbrian slang.
Traditionally used as a reposte to an insult, equivalent to the unpleasant experience of physically trying to put a coal scuttle in your mouth.
Alternatively can be abbreviated to a simple 'Scuttle'.
"She told me I was ugly and that was a right scuttle in the mouth"
The experience one feels after going through tennis practice with little to no water. This condition then leads to a more serious ailment such as a hip flexor injury.