A male/female, usually aged between 15 and 20, who looks to be in their early teens. Commonly refered to as losers, as they tend to insult their only friends, often resulting in alienation.
"I thought Jimmy was cool, until he called me a slut. Then I realized that he was a total Mashley, and I didn't need to waste my time around him."
by SarZeeAsh January 01, 2009