crack a happy

When the male reproductive organ becomes erect.

guy1:dude when i was talking to Danielle i almost cracked a happy.
guy2:Haha, that would of sucked dude. To crack a happy in public is embarrassing.

Alternate names: Woody, boner, prof. stiffy, rod, ect...

crack happy

When you're on crack (a type of drug), you usually laugh and act a lot happier than you really should. Feeling crack happy is when you feel way happier about something than you really should.

A friend just gave you an M&M and you start jumping up and down like you've just won the lottery. Your friend says, "You're crack happy over that little M&M?"