Johnny Weir's Husband The Bite [PHOTO] He Nearly Took a Chunk Out of My Arm!!!

Johnny Weir went full vampire on his husband Victor Voronov during a nuclear domestic dispute early this year -- nearly biting a chunk out of the guy's arm -- or so Victor claims ... and now, TMZ has obtained a photo of the damage.

Details surrounding the argument are unclear, but the bite mark is gnarly.

Victor filed a police report and Johnny was charged with simple assault back in January.  Victor decided not to press the case and charges were dropped.

As we reported, Johnny and Victor had multiple issues leading up to Johnny filing for divorce last month