happy in the pants

something causing an orgasm or an erection.

Those cookies made Ben Davis happy in the pants.

happy in the pants by Emily and Brooke June 26, 2005

make happy in one's pants 

1. To suddenly discover that one, under circumstances of excitement or happiness, that one has in fact ejaculated.

2. Goes the same for any type of substance which has been released into the underpants.

Mommy...I made happy in my pants again...
What have i told you about playing on the tyre swing?

1. Wow! A Butterfly!
It's enough to make happy in one's pants

2. You make one happy in one's pants!

make happy in one's pants by Pie Brother TB January 20, 2008

happypants 

when a human tends to get very horny and stays horny for a long period of time(48 hours)

Jimmy,"Dude did u see Sandra in that thong yesterday?" Ren, " yeah man, i can't stop thinking about it, ive been happypants for a while!"

happypants by Disarmed Milk June 18, 2005

Happypants 

General term for someone who either is gay or acts gay. Usually denotes an effeminate male.

Ever since Celine Dion announced she was playing in town, happypants over there hasn't stopped talking about it.

Happypants by theseanman December 17, 2008