1. An expression meaning "suck my dick". The proper use of this word is accompanied with a hand motion as if one is holding his penis and directing it toward the other persons mouth. To be pronounced properly one should drag the word out as long as possible. This is best achieved as the other person is yawning.
Friend "Man, I'm tired" (yawns)
You "GOOM!!!!!" pronounced GOOOOOOOOOOOOOOOOOOOOOOOOOOOOM!!!