Slang for know-it-all of smart ass. If you were to say something and someone was to reject what you said by proving it wrong you would call him/her a sass mouth.
'Dude, trust me your wrong.'
'Quit giving me your sassmouth.'
Derogatory term for an individual who exudes an unsavoury stench from their mouth while speaking, laughing, and or while opening their mouth in general.
Bill's bad breath attained such a level repugnance that his coworkers nowjoke that he suffers from assmouthavitis.
John: Yesterday I met my girlfriend in the mall, speaking of the mall, they have discounts on dildos, speaking of dildos, I gotta buy one for my mother! Jack: What an assmouth
authentic, raw, real, hardcore, manly; as opposed to wussified, metrosexual, fake
Usually used in connection with American Football, "to play smashmouth football"; allegedly coined by Chicago Bears coach Mike Ditka.
Also the name of two US-American bands.
"Oo-er, I'm afraid I've strained my ankle and need to be rushed to the hospital!"
"Forget it! We're playing smashmouth Rayman Raving Rabbids here!"