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When a boy or a girl gets cock and balls slammed into his or her mouth.
"Dude, my girlfriend and I were messing around last night and i gave her a Montana mouthful."
"Ew, i don't need to know about that."
"...I'll give u one."
by Kobe Whitlock May 26, 2009

Words related to Montana Mouthful

cock cum seizure boy war