Masturbation.
In other words:
Choking the chicken
Choking the monkey
wacking off
jerking off
shaking hands with man's best friend teasing the weasel
Dude, we all know that last night you did the five finger knuckle shuffle on the one-eyed, blue-veined, purple-headed, custard-chucking, salty yogurt slinger.
A condition of extremely veiny and elongated mammary glands. It first became popular in the mid 70s. Braless and unsupported, the stretched out veiny boobs dangled and created "granny tits' or "Blue veined danglers" typically found on D cups or larger. There is no cure for the disorder.
Gramma had the biggest blue veined danglers I've everseen!!