A term used to describe someone who curses a lot and generally talks about inappropriate and disgusting things.
Girl: I bet you'd love me to finger bang you in your arsehole until you cum.

Boy: Piss off you foul mouthed dirty bitch!
by duelpro2 January 06, 2014
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Someone who uses a lot of profanity and isn't even aware how offensive he/she is being.
V-Bo is always talking about how men clean their genitals and she sure likes to say the words 'bitch.' She is a foul mouth!
by ponyup May 19, 2009
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The foul mouthed yobs are a young 3 peice punk band from Wollongong, Australia.

AKA 'the yobs'.
"The foul mouthed yobs are playing tonight!"
by scum sucking criminal April 14, 2008
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