is it though?

The ultimate answer to any statement, showing that you think that what's been said is a load of bollocks, or at least that the other person doesn't deserve a reply that takes any of your valuable brainpower. If the other person is playing along, they should come back with a perfectly-weighted "Well..." with accompanying gestures.

"Britney Spears' latest album is the greatest piece of music of our age."
"Is it though?"
"..."

"I roxor your socks."
"Do you though?"
"Well..."
"Debateable, tbh"

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