Top definition
A derogatory expression referring to someone of Belgian or Dutch descent.
I liked Amsterdam but some of those butter mouths pissed me off with their attitude.
by Eddyde March 22, 2008
Get the mug
Get a Butter Mouth mug for your daughter Zora.
Any woman that a man has sexual relations with and doesn't put his penis anywhere but her mouth.
You remember that blonde chick at the party? I totally took her into that spare room and made a buttermouth out of her.
by Wigglesticks February 06, 2018
Get the mug
Get a Buttermouth mug for your girlfriend Riley.