Top Definition
A play on the term Leatherneck when in reference to a Marine by another Marine. Can be used either as a derogative or affecionate term depending on context and familiarity between the Marines. Usually used amongst the lower enlisted personnel
CPL: Hey Leathernuts, what the fuck do think you're doing?

PFC: *Looks confused and go's to Parade Rest* "Me?"

CPL: Yeah, you numbnuts. Where the hell in my Marine Corps is it OK to smoke and walk?


CPL #1: "Mornin', Corporal!"

CPL #2: (Hungover because CPL #1 was buying lastnight)"Fuck you, Leathernuts."
by motofireeater January 10, 2010
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