circle jerk
A group of people jerking off (masturbating) together (with or without interpersonal contact).
This is Melville's real heaven, an all-male platoon, each with his hand in someone's pocket. The circle jerk is another Romantic uroboros.
(derogatory) Any group or group activity indulging in excessive mutual praise.
(Internet slang) An environment (especially an online community) in which people express or validate a narrow set of ideas and feelings.
(derogatory) A situation in which a group of people engage in self-indulgent or self-gratifying behavior, especially by reinforcing each other's views or attitudes.
(drug user slang) A person who shares syringes when injecting drugs.
(vulgar, slang) To participate in a circle jerk.