look up any word, like rimming:

1 definition by Emmy "mop" Sharples

An infliction of tall guitar players who stoop to play. forming a hump back also known as guitar back.
girl 1: Seb so has a humpback
Girl 2: nah thats guitar back
Girls 3: oi humppy
by Emmy "mop" Sharples October 18, 2006