Deer on the brain and other hazards of being too literal

I saw a billboard late one night on my way home, but since I've had deer on the brain, I sort of misinterpreted the text on the sign, which talks about a "bare-knuckled bucket of does," and my brain just sort of stuttered and stopped as I tried really hard (it was past my bed time) to figure out if deer or buckets even have knuckles and what a bucket of female deer would even try to possibly mean. 

Needless to say, I have no idea what product was being advertised.

It's past time for bed now, too.