He said 'burn', not 'bum'Although granted they do look similar.
(
2 Can Chunder Word to your mums, I came to prod bums,
Wed 10 Mar 2010, 10:09,
archived)
But the inferrence was much the same
(
Joe Scaramanga with a G-double-O-D vibration,
Wed 10 Mar 2010, 10:23,
archived)