fuckerpants 

alternate fan-based name to the song titled "Prince Caspian" by Phish. This secondary moniker came about as an expression of displeasure upon hearing the song, which is arguably one of the weaker songs played in a typical Phish set (also known as a bathroom-break song). Origin is unclear, though came into popularity in fall/winter of 1997. Tapes and setlists circulated among the fans commonly have this song listed as Fuckerpants instead of Prince Caspian.
Useage of this moniker seems to be more prevalent per-capita among Phish tapers than the overall scene.

1. "Dude, set two was raging until they killed it with Fuckerpants."

2. David Bowie > Possum > fuckerpants, Frankenstein, Harry Hood

fuckerpants by GrampsMI March 22, 2009

Fuckerpants 

Some one that comes to randomly mess with people when they are busy with a task. Guerilla warefare, as they usually attack and run off.

"I was under the car on a creeper and that fuckerpants Tim kicked me in the balls and took off before I could roll out and kick his ass."

Fuckerpants by Timmy 2 tone September 22, 2006

puckerpants

Pants that look as though they’ve been sucked up into a person’s anal cavity.

Watching a progressively horrific sinkhole of cloth disappearing between the cheeks, I landed on the term puckerpants.

puckerpants by Dr Bunnygirl November 26, 2017

Funderpants 

Underpants or knickers designed for quick easy access to the genital area resulting in the ability to executed "quickies" with the greatest of ease. Generally worn with the intention of a debaucherous night on the town.

I just want to go out and be dirty tonight. Might wear my funderpants

Funderpants by Mx Pwr April 17, 2009

fuckerpastic 

adj. L. fuckerpasticum, fuckerpastici, Gr. fukerpastikon, fukerpastikoi; from Gr. fuké meaning "the peak and summit of existence" + pastis meaning "dingleberries".

1. a. "most agreeable," b. "particularly unique," c. "spectacular," or 2. related to the person or actions of Chester Leonard Olszewski, a.k.a. Pope Peter II of Bradford, PA.

fuckerpastry n., fuckerpast n., fuckerpastically adv.

That was a fuckerpastic dictionary entry.
He fuckerpastically mounted her moaning body.

fuckerpastic by Dr Samuel Johnson, LL.D. M.A. May 19, 2010

fuckpants

someone who is being a flat out meanie face cockmaster by either stealing something valuable, talking behind your back, etc... usually the person who needs to be cockslapped to teach them a lesson.

frank: that guy josh is a fuckpants
jonny: i know dude we should beat his ass
frank: thatll teach him to hit my girl

fuckpants by scotty dotty October 9, 2006

Fuckpants

A person who is easy, a slut, a whore.

That girl I was with last night was a total fuckpants.

You fuckpants!

He's such a fuckpants.

Fuckpants by SabbathJustSabbath December 24, 2010