Placing your genitals between the seat and bowl of a public toilet for sexual accomplishment - Originated by George Michael of Wham fame hence Wham Bag - Verb Wham Bagging - to Wham your bag.
" I had a right night the other day, me and George where out in East LA when he says 'I know a great little toilet round here if you fancy a laugh' Next thing i know were Wham Bagging the night away Wham Bag thank you mam!"
by Mighty Tim October 23, 2008