Fancy the pants off 

Have a huge crush on, desire, love, obsess about.

I fancy the pants off that guy who works in the book shop. He's gorgeous.

Fancy the pants off by vista_fail September 28, 2010

Maturkety pants 

Maternity pants, in all their stretchy glory, repurposed for a gut expanding due to Thanksgiving Day overeating rather than pregnancy.

My jeans were making Thanksgiving dinner uncomfortable, so I switched to maturkety pants.

Maturkety pants by Bogrimm November 28, 2017

Gaucho Pants 

Skirt-like pants that usually end at the calf. These pants feel like leggings at the crotch area but flares down at the legs.
Gaucho Pants come in different colors (Black, Brown, White etc.) but the most common color is black.
These pants are typically worn during the spring and summer but can be worn during the fall and winter with calf-length boots.
One of the most comfortable pants you will ever wear.

Are those shorts or skirts? -Brian
They're Gaucho Pants -Olivia

Gaucho Pants by TheDuce123 September 20, 2015

Slippery Pants

Originated in TheRunawayGuys Mario Party 5 - Pirate Dream Part 2

It is like a slippery slope, but with pants, referring to a person with a high likelihood of saying something that sounds unintentionally sexual.

Did you actually just say you want to 'do Daisy on hard?' God you have slippery pants.

Slippery Pants by tordenofitami November 14, 2017

grape panta 

It is Kokichi Ouma's favorite drink he drank it when no one else did.
What a trooper.

Kokichi: My favorite drink is grape panta.
Shuichi: Dont you mean Fanta?
Kokichi: DiD I sTuDeR?

grape panta by K0KICHI_SIMP November 25, 2020

f'pants 

An abreviation of the term fancy pants, used to describe somebody or something overly elegant or refined, uppity or la-dee-dah.

Can also be used to describe something awesome, generally good and impressive in a posative complementary way.

"Errgh (eyebrows raise) That's a bit f'pants" or "f'pants! That's really neat"

f'pants by click-pop September 19, 2011

Hard Pants 

Pants that don't have a stretchy, elastic waistband. During any pandemic, the desire to wear only elastic waistband pants instead of pants like jeans,

During the pandemic, Victoria refused to wear hard pants.

Hard Pants by mckilt May 22, 2020