When two males hold their penis' together and masturbate whilst both penis' are touching the other, usually only one person has to masturbate both of them.
Male 1: Look! Johnny is masturbating himself and Bob with only one hand! He's doing a gay double barrel!
Male 2: Hot.
Male 2: Hot.
by Dude112233dt6t6iudtiusr6hj March 07, 2011
Get the Gay Double Barrelmug.