Dictionary
slap•hap•py
Pronunciation: (slap'hap"ē), [key]—
adj., -pi•er, -pi•est.
Informal.
1. severely befuddled; punch-drunk:
a slaphappy boxer.
2. agreeably giddy or foolish:
After a martini he was slaphappy.
3. cheerfully irresponsible:
a slaphappy crowd. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.