Happy flappy 

1. Exaggeration of the word 'Happy'

2. Often used in a birthday wish

3. characterized by or indicative of pleasure, contentment, or joy.

"Have a happy flappy birthday!"

Can be used as a 'messy birthday wish' as in: "Hope you have a happy flappy birthday. Lots of slobbery kisses, Mr. X"

Happy flappy by BlankoBP October 5, 2011

Mr Happy's Flappy Garage 

An expression used to describe a vagina.

Lianne: Are you pulling into Mr happy's flappy garage tonight? Fuels on me ;)

James: Yes.

Mr Happy's Flappy Garage by hotbitchesmotherphucker October 31, 2011

happy frappy 

An expression derived from the Guster song of the same name, "happy frappy" is a term mixing joy and frothy beverages. If you are happy frappy, you are feeling very well, and are most likely indulging in something delicious.

"I'm happy frappy! I drink Starbucks because I'm a consumer whore! Mmmm, coffee! YAY!"

happy frappy by Kefanii September 10, 2004

happy flapping 

the act of putting ones head, _entirely_ within a lady's box

your flaps make me happy, but I'd be happier stills is a could go happy flapping in your happy flaps.

happy flapping by Sean of the dictionary November 21, 2010

happy fappy fun time 

The instance in which you masturbate and are laughing uncontrollably. Usually involving up to 10-15 people male or female.

Last Friday was a straight up Happy Fappy Fun Time

happy fappy fun time by mrbigpapa123456 March 25, 2016