Meaning : Cheerfully irresponsible.
Example :
Carefree with his money.
Freewheeling urban youths.
Had a harum-scarum youth.
Synonyms : carefree, devil-may-care, freewheeling, happy-go-lucky, harum-scarum
Meaning : Dazed from or as if from repeated blows.
Example :
Knocked silly by the impact.
Slaphappy with exhaustion.
Punch-drunk with love.
Synonyms : punch-drunk, silly