Green’s Dictionary of Slang

1. a male lover.

1930

Memphis Minnie ‘Bumble Bee Blues’ 🎵 You’re my bumblebee / And you know your stuff.

2. (US black) the vagina; thus also a female lover.

1960		P. Oliver Blues Fell this Morning 125: A lover may be a ‘bumble-bee’, a ‘honey-dripper’.
1961		R. Gover One Hundred Dollar Misunderstanding 75: I shift gears! Yeah! My bumblebee goes an gits him a lil french honey an I toot my whistle!