Esso Tiger

In the early day's exlusively gay men worked at Esso stations.
As same-sex love was strictly forbidden before color was invented a series of elaborate and obscuring jargon was developed. The Esso Tiger was and still is slang for the phallus. Stroking each others Esso Tigers was the most common after-hours activity in the black and white Era.

"So John, our long work day pumping gas is over and oogling Roger More is over! Please will you let me stroke your Esso Tiger now?* Wink wink*"
- Oh yes thank you Obright, I would be positively elated!