Answer: irestmycase

AnswerCrossword Clue
IRESTMYCASE

"And there's the proof"

IRESTMYCASE

"Told you so!"

IRESTMYCASE

"The point has been proven"

IRESTMYCASE
"That proves it"
IRESTMYCASE
Attorney's closing comment
IRESTMYCASEStatement at the end of an argument
IRESTMYCASE"That just proves it!"