2 definition by timpanum

Top Definition

An acronym signifying one's Most Masturbate-able Facebook Friend

She's got some nice bikini shots on Facebook now, she's definitely my new MMFBF.

by timpanum December 20, 2014

A rusty trombone wherein the recipient of analingus and a reacharound concludes by urinating rather than ejaculating.

James drank a large quantity of coffee early in the morning, so his anticipated rusty trombone instead became a shiny trombone.

by timpanum September 20, 2014