Hey where's your boyfriend?
Oh, he's just out with some of his friends
Careful now you don't want him out with some Bummie's down the lane
It is also polite and acceptable to enquire after witnessing a bummy how many pairs of shorts the bummy artist was wearing before you dive in.
Not to be confused with an old man who writes books under the pseudonym 'Bummy'
"nah man, that shit was raw"