Happy people go to hell is a saying originating from online forums. It is used by anybody who is not a normie especially those who just experienced something very bad. Also used as slang in groups of friends when a couple is spotted.
Friend A (single): "Look at Nathan and Cora over there, I still can't believe that they are a couple"
Friend B (single): "Happy People Go To Hell"
A happy jonny is that one kid we all know who can just annoy the living shit out of you
I was trying to get some work done when that happy jonny over there came to "help me"
It can be used as a sentence to ask if the other person is hard.
It’s also sentence that a dumb person made up to mock someone.
“Does that make you happy?”
“Yes baby”
An expression used during Kwanzaa to wish someone a happy time.
Slap happy describes a guy who likes to jerk off A LOT - as in more than what is considered normal or healthy.
Dave: "Have you seen Bill around?" Bob, "No, I haven't seen Bill around in a long while - I heard he likes to stay in and slap his slap-stick around all day - I'm afraid he's gone slap happy!"
Slapping the hands together as though you are happy and high on life for what you are doing at the moment, or what you are planing to do in the near future.
I'm slap happy because we are going to Mc.Donalds. Mc.Donalds is a "Slap Happy " place.