The art of receiving oral copulation when situated in a mosh, or a large and unruly crowd of individuals. The moshjob is considered such a rarity due to the subtlelty required to perform such an act.
Example 1:

Guy 1: How was last night's Justin Bieber concert?

Guy 2: Awesome, I received a moshjob in the mosh.

Guy 1: You are so lucky I wish I could be you.

Example 2:

Girl 1: Hey, why are you bleeding so violently from the nose.

Girl 2: I was giving a moshjob at the Rage Against The Machine concert 5 minutes ago and I kept getting kneed in the face.

Girl 1: That's terrible I'm glad I'm not you.
by Festibat January 2, 2011
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