Green’s Dictionary of Slang

bumblebee whisky n.

[it ‘stings’]

(US) especially potent whisky.

[US]G.W. Harris Sut Lovingood’s Yarns 33: I tuck me a four finger dost ove bumble-bee whiskey.
[US]R.F. Adams Western Words (2nd edn) 45/1: bumblebee whisky What the cowboy calls a strong whisky with a sting.