The patch of hair at the base of the spine, just above the start of the butt crack. Usually found on men. Resembles a traditional bush, just located on the opposite side.
ok, stephany is more or less correct....BUTTBUSTER is a gay guy with a large cock that likes to fuck other guys and leave them wanting more, butt it is also my handle and has been for 50 years, just because I like to fuck other guys and leave them wanting more...