metal mash 

When a male with braces goes down on a female in an aggressive fashion. This is often done out of malice and can result in scaring.

Aaron was so mad at his girlfriend for ruining his party that he metal mashed her later that night.

metal mash by Jjcales January 11, 2012

digitec metalmaster 

the sorriest distortion pedal in the world
(refer to Brad Butler)

digitec metalmaster by G-Ride May 8, 2003