Did They Fuck

A British expression to say they most definitely did not do that thing, said as a statement rather than a question, often used as part of a story or to show doubt of someone’s outlandish claims.

“They kindly moved the cones for the ambulance but did they move those cones back, did they fuck!”

Or

Person 1- “I just did 1,000 press ups in a minute”

Person 2- “Nah mate, did you fuck.”

See also ‘Did they bollocks’