Actually I think it's to imply impressive penis size.
It's from Blackadder, don't you know.
(
Je suis un vagabond is an unfunny, up your own arse middle class knob,
Wed 19 Aug 2009, 9:05,
archived)
Best of all the anti-heroes
"RIGHT! WE'RE OFF! AND REMEMBER, YOU LOSERS, IF EVER YOU'RE IN TROUBLE AGAIN, GIVE ME A CALL, AND I'LL COME 'ROUND AND KILL YOU! HOORAY!"
(
Je suis un vagabond is an unfunny, up your own arse middle class knob,
Wed 19 Aug 2009, 9:14,
archived)