Butt Happy 

When you're incredibly happy about something.
So happy in fact, that your enthusiasm could easily be perceived by others as you being gay for said object of affection.

Butt happy is the antithesis of being butt hurt.

Mikey was all butt happy when he heard that Tool was playing a show in downtown Austin.

Butt Happy by Psych091 June 2, 2011

Slap-Happy Butt-Smackin' Deal 

An offer you simply cannot refuse to give up.

"Want to go eat some shrimp at that one restaurant you like?"
"Well that sounds like a Slap-Happy Butt-Smackin' Deal, my good sir!"

Slap-Happy Butt-Smackin' Deal by Cyrus9201 October 11, 2013

happy butt 

When a dog wags his or her tail, hence their butt is happy.

I could tell my dog was happy to see me because she had a happy butt.

happy butt by happybuttdog January 10, 2011

slap-happy-butt-smacking-good-deal 

1 acceptance

2 Giggity

well you have yourself a slap-happy-butt-smacking-good-deal fine sir

slap-happy-butt-smacking-good-deal by Barnaby Jones II February 15, 2009

Happy butt 

When things are going well for you.
An extra little bounce in your step.
A really good mood.

Sally: "You're in a good mood today!"
Dave: "I woke up with a good dose of happy butt!"

Happy butt by jsd9632 January 15, 2012