Answer: couldntcareless

AnswerCrossword Clue
COULDNTCARELESS

Is indifferent

COULDNTCARELESS

Doesn't give a darn

COULDNTCARELESS

End of quip

COULDNTCARELESS
Was completely indifferent
COULDNTCARELESS
Is apathetic
COULDNTCARELESS"So what?!"
COULDNTCARELESSEnd of the quip