The nest is when your about to take a massive shit and you take a whole bunch of toilet paper and throw it into the toilet so when you shit the poop water doesn't hit that place between your ass and nuts.
A phrase describing when a guy is low-key hitting on a girl. Causally testing the waters to get a feel for the odds of him eventuallygetting some tail. In this context, 'nest' refers to the female crotch, around which he's sniffing.
Guy: 'Why is your phone buzzing today constantly? Who's texting you?'
Girl: 'This dude I met who offered to teach me how to weld.'
Guy: 'Weld? That's weird. He's probably also trying to sniff the nest'
Girl: 'Yeah, probs
A term to describe someone who just got out of bed and used minimal hygiene before presenting himself/herself to the world. Usually done by people who partied like a rock star the night before. Something worse than bedhead.