intensely excited about something such that one's excitement rivals that of sexual pleasure
The release of Madden 2006 made Bob, an avid football gamer, happy in the pants.
by Nate910 April 19, 2006
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1)being happy in the crotch area
2)having an erection causeing your pants to bulge
that chick makes me happy in the pants!
by dre dre August 22, 2004
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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!
by Pie Brother TB January 20, 2008
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A phrase often used to establish the fact that the speaker is excited, sexually or not.
Jo: Y'think I'm getting a little fat?
Derrick: Joanna, you make me happy in my pants.
Jo: ...But you do think I'm fat?
by PolDak July 12, 2006
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Cool comfortable and unique collection of pants. Usually the texture and colors are bright and very attractive to the eye.
by happydave April 21, 2011
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When a man has an erection in his pants and it is fairly noticable
Billy woke up with happy pants!
by Celli3 April 25, 2006
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