Have you ever walked away from an insult and thought, "I wish I'd said something better than 'your Mum'"? Us too.
Learn from the experts who put-down trolls and fight critics before breakfast, and take inspiration from some of the best comebacks of all time.
Stephen Hawking shows television presenter and comedian John Oliver who the real funny-man is.
Remember Tom, everyone's first MySpace BFF? When someone questioned his success and labelled him a social media failure, Tom took a break from counting his dollar bills to respond.
When reality TV star-turned-designer Lauren Conrad was asked what her favourite position was, she replied with all sorts of girl-power.
Many of James Blunt's tweets could have made this list, but this one was a lesson in burn-age.
The Piers Morgan v. Gary Lineker feud has been well-documented, but who can forget this gem.