A large bear like guy who likes to kiss everybody male or female when he's drunk. Can handle his beer and more importantly his food but rarely shares the latter. If food sharing occurs then he probably wants a bit of what you're eating.
Quick, hide your food Moston's coming! uh oh its gone
by ScubaSteveCH April 09, 2009
1 more definition
To smack a person in the forehead with a quick snap of the wrist using the palm of your hand.
Did you hear the crack when I mostoned that dude?
by Kristhebhoy November 27, 2005