Short for significant figures, a chemistry concept indicating that a measurement is rounded. Often used by guys to exaggerate height.
"I'm 5'10 which is basically 6'0 cuz like sig figs."
A phrase for when you need to go to bed. The 'sandman' is a legend that comes at night to deliver 'sleep' or sand.
"Alright sorry I gotta log off. Sandman's calling."
Someone who is intelligent in school but has zero life or interpersonal skills.
"You're book smart and street illiterate."
Latin for "in the womb," this term can be used to describe something that has been around forever.
"Are they gonna break up?"
"Nah, they've been together since like en utero."
A comeback phrase you can use to humble someone, indicating that they have nothing of a certain thing, while you have more than them.
"Yeah, you're a college athlete, but you ride the bench."
"Over-under 0.5 D1 offers, bro?"
Someone who lacks charisma or enthusiasm and usually speaks in a monotonous tone. It can be used as a simile or metaphor.
"I don't learn anything in that class. My teacher has the charisma of a self-checkout machine."
Something that will only happen every 75 years.
"You did the homework?"
"Yup, Halley's comet: take a good look because you will never see this again."