when someone jumps in the air and touches both there toes by doing the splits similar to the jump in Mamma mia! where Meryl Streep jumps on the bed whilst singing dancing queen .
"I'm the British Trampoline champion 4 years running"
"Yeh but i bet you can't do a Meryl Leap"
(does Meryl Leap)
"wow... your right i could never anything that awesome"