The Hangover star clashed with cameraman Douglas Thornton during his wife's birthday bash at the Key Club in Detroit, Michigan on 27 November (10) and security officers were forced to intervene when a brawl broke out.
Thornton subsequently filed a $1 million (GBP666,670) lawsuit against the actor earlier this year (11), claiming he was subjected to a "brutal beating" at the hands of Epps.
The actor was handed the legal documents during a comedy performance in Texas last week (beg02May11) and Epps, angered by the interruption, shot back at the process server with an expletive rant.
Captured on tape obtained by TMZ.com, Epps said, "White b**ch just threw some papers up on the mother f**king stage ... b**ch, f**k you.*B**ch. I don't give a f**k ... suck my d**k."
The actor, who continued on with his set, later admitted to taking part in the alleged physical altercation.
He added, "This is from when I whooped that n**ger's a** in Detroit."