Comeback lines that you have heard or read about from any walk of life. From famous people to mates, ones you have said or over heard, or ones on here even, etc.
As teenagers my two mates were having a heated 'wind each other up' argument, my very spotty mate says to my other mate
'I'll end up knacking you, prick'
To which my mate replies,
'Shut the fuck up or I will punch the puss out of your face'
What great comebacks have you heard or know about?