Underhyping 

Not hyping something or someone up nearly enough

Damn I’m tryna tell thisngirl how perfect she is but I keep underhyping it

Underhyping by Kdksh October 17, 2018

underlying 

1. For something to be under/situated under something
2. Something that is important, but is hidden away

1. There is an underlying issue with this program. (There is an issue that is not obvious with the program)
2. A green box is underlying another box. (A green box is underneath another box)

underlying by FesterTY September 14, 2018

underlying slopper 

An underlying slopper is the act of a girl smearing her boyfriend's diarrhea on his balls and then using said diarrhea as lube to give him a handjob.

Man, I just got an underlying slopper from my girlfriend. It was fucking arousing and awesome!

underlying slopper by MonsterLog42 December 10, 2022

underlying stock

(FINANCE) a stock whose price movements determine the value of a financial derivative. For example, when a hedge fund manager writes a call option for Citigroup (NYSE:C) at 4.25/share, C is the underlying stock.

"Underlying" can be used to refer to other things besides stocks; for example, commodities, currencies, or bonds.

A put option rises when the spot price of its underlying stock declines.

underlying stock by Abu Yahya April 5, 2010

Underlying joke 

when you forget the word “inside joke” and NEED a better version x

underlying joke BBBB LOCK

Underlying joke by megalicous April 13, 2022

the underlying filth 

the dark matter that builds up uner your toenail after 3 months of avoidance, not to mention it smells like rotten mayo the dwells in liklyness of teste satchel.

you smell like the underlying filth , i want to kill my whole family

the underlying filth by oren November 6, 2004

underlying condition 

A pre-existing medical issue that can increase a person's vulnerability to contracting coronavirus and/or dying from it.

Anything which renders someone less than optimally healthy, compromising their immunity.

Being human.

Just being alive felt like an underlying condition. Her asthma was an additional factor, she supposed, but each day she was getting news of yet another person coming down with corona. They were old, middle-aged, young, healthy or not.

underlying condition by Monkey's Dad March 29, 2020