A friend/lad who constantly sucks up to a particular girl or group of girls thinking he is popular or "getting some". These people are known as gashweasels.
A controversial sex move in which a person inserts ping pong balls into their anus (gastro), and then shoots out said balls into the mouth of a willing participant (pong).
"I heard Mike enjoys a good same of gastro pong. I wouldn't share any drinks with him if I were you."
Somebody who's super morbidly obese to the point of probable near-death, but acts sexy as fuck and tries to guilt everybody else into finding them attractive.
A fetish that acts as a mixture between emetophilia, oviposition, and vore, inspired by gastric brooding frogs (Rheobatrachus). Describes the process of swallowing fertile eggs, having them hatch in the body, and being regurgitated. Eggs are often that of worm-like creatures such as snakes, maggots, or centipedes, to enhance the focus on wriggling and squirming in the host's stomach.
Person A: Dude I just saw some fucked up hentai where a giant wasp laid eggs in a girl's stomach, and when they hatched she puked them up. Can't believe some people get off to this.
Person B: Oh yeah, that sounds like some Gastric Brood shit.