slaphappiest 

Happier than slap happy, and the best of all slaphappier options.

I was slaphappier with blue or green over red. I'm slaphappiest with gray.

slaphappiest by Ranger Wordsmith March 18, 2015

slaphappier 

Elated to the point of slapping one's grandma. Slightly happier than slap happy, but not as happy as slaphappiest while in a state of stupor or suffering from a lack of sleep.

I couldn't be slaphappier to make your acquaintance, although I don't expect to recall it later.

slaphappier by Ranger Wordsmith March 19, 2015