look up any word, like ratchet:
 
1.
crappy marijuana. aka schwag. ditchweed.
That dude told me this was kind bud, but it's bumweed.
by paperboy May 20, 2005
 
2.
The hair that grows on ones bum
Ewww you have some nasty bumweed
by KJ25714 May 17, 2005