undefined

When you use Javascript and confused this between null and 0

undefined == null // true
undefined === null // false
// this is js

by katetem January 19, 2018

underfresh

Just where to begin Damn REMIXES of everything and wtf are them glasses tho

Your as fresh as underfresh

by Old Chicken Nugets February 1, 2019

The Undertale Effect

By listening to undertale ost's your vrt increases by 100% causing you to get good kovaak's scores. Often people confuse it with 𝓪𝓲𝓶𝓫𝓸𝓽*.

*𝓪𝓲𝓶𝓫𝓸𝓽- a bot that aims.

Me: oh you got a good score on arc dodge switch?
My friend: yeah i used the undertale effect.
Me: oh that makes sense now

by Saltcult February 9, 2021

Playing Undertale

Playing undertale is a term used for a form of homosexual intercourse, in which the dominant male forces their hand fully into the "underground", another term for the other mans asshole.

Hey man, we're playing undertale tonight.

by ReimuSEES February 14, 2021

Undertale

A really good game made by Toby Fox that people insult and say is cancer because they're jealous of how great the game is AND HE SWIMMING IN MONEY LIKE SCROOGE MCDUCKEHHHHHHHHHHHHHHHHHHHHHHHH

Hater: "undertale sux"
Me: "Shut yo mouth, you're just jealous."
Hater: "fu-"
*ABSOLUTELY DESTROYS HATER WITH DAS KARMA*
"Get dunked on, sucker."

by Ye Olde Gomibaka April 19, 2018

underbite

when your eating pussy and you get a mouthful of shit

Fuckin Bitch, I just got an underbite.

by AlBundyisgod1906 April 26, 2006

underface

noun

un-der-face

An underlying look or facial expression.

"Kelly isn't ever mean or rude to anyone, but her underface says she's a bitch."

"His sexual underface is most appealing."

by faeriewhip January 18, 2016