Male masturbation. Typically, the more vigorous and rough variety. Not just a causal wank.
I walked in on my roommate sitting on the toilet hammering the beets. I wondered what the smacking was.

My uncle paid me $50 to let him watch me hammering the beets.

I’m so sore from hammering the beets. My balls are swollen. I was on pornhub all day.
by Dick Onchin September 23, 2020
Get the Hammering the Beets mug.