Pants Bunny 

1. When you use an iron to dry your underwear, the iron turns excess water into steam and lifts it away into the air, leaving the underwear warm and fluffy. Like a bunny, but in your pants. A pants bunny.
(taken from a story by Jay Barnes)

2. One who likes being in someone's pants. My boyfriend's nickname for me.

I am your pants bunny.

Pants Bunny by Bela Rasmussen October 5, 2004

Bunker Pants Bunny

Someone who always fucks or dates firefighters

Oh my god, she is such a bunker pants bunny, she has slept or dated every fireman in the county

Bunker Pants Bunny by Bunkerpantsbunny September 6, 2016

Benny Tight Pants 

Benny Tight Pants is the name for the following syptom:
The ithcy dry feeling males get in the inner thighs when walking in cold weather, 32 and below, in suit pants. It is as if you were wearing the tight pants your mom dressed you in during your elementary school years and lined the pants with brillow pads.

Gosh it's so cold out, my inner thighs feel like Benny Tight Pants.

Benny Tight Pants by Steaksizzle December 23, 2009