Gaynious is an expression used as a sarcastic comment for naming a person that has done something stupid (like genious) but also insinuates that that person is gay.
Marko: Central heating is harming the world
Jurus: You mean global warming?
Marko: Oh yeah that's right Jurus: Fuckin' gaynious
The horrendous scent when you defecate but fail to wipe thoroughly, and then go walking around Disneyland; the already unpleasant smell of ass cheese mixes with the sweat in your gooch to create a reeking stench that will follow you for the rest of the day. In most cases, this has been exclusive to thicc people: e.g. Ethan Klein and that one Cuban boy that shows up to the pool party with a Bluetooth speaker and some cheap water guns.
Guy 1: "That kid reeks of baba ganoush."
Guy 2: "I know, right?"
You: is self-conscious