(noun, vulgar slang): an established lesbian or bisexual woman who helps a bicurious woman or girl awaken a lesbian attraction by way of sexual experimenting.
After a weekend with Charlene the tuna helper, Stacy knew for sure that she was a lesbian.
from "tuna" (often used to describe the smell of human female genitalia), and "helper" (one who helps)
This is based on the use of the "stranger" where the male lays on his own arm to put it to sleep. Then uses his own arm to masturbate himself but here's the twist...
Put the arm to sleep with two fingers extended and have your female partner use your stranger hand to finger her vagina to her satisfaction.
A meaningless, unimpressive, self-serving introduction. An indicator that the story about to be shared will be pointless and dumb.
Back when I lived in upstate new york, I also had to park on the street - on two occasions, we got enough snow, mixed with just the right plowing, that my car was lifted off the ground from so much snow being jammed underneath it.