(Hepatitis Goat Fucker) A rare but highly contagious form of hepatitis that is only believed in by dumbasses who think Heptatitis Goat Fucker is a real disease (Named after a patient zero who fucks goats), spread by word of mouth to other goat fuckers.
I thought she has herpes, but turns out she has Hepatitis GF instead. Thank god I dodged that bullet!