a skateboarder who can't push correctly and isntead uses his/her frontfoot to push instead of his/her backfoot. This is called pushing mongo.
"dude, look at that filthy mongopusher"
"yea, mongopushers are fucking stupid"
a skateboarder who leaves their trailing foot on the board and pushes with their leading foot. for example, when riding "regular" (left foot in front), the skater pushes with their left foot, and when riding "goofy" (right foot in front), the skater pushes with their right foot. this style is frowned upon by the general skateboarding community for a couple of reasons: 1.)not well-balanced; center of gravity is off and 2.)looks awful; negative style points.
tell that mongo pusher to stay away from me. he's a pussy deterent.