In this episode, The Teacher introduces you to three idiomatic phrases connected with legs.
Pulling somebody`s leg: fooling someone, joking with someone
Cost an arm and a leg : To cost too much. It cost an arm and a leg, so I didn’t buy it. Why should a little plastic part cost an arm and a leg?
Give no leg to stand on: [for an argument or a case] to have no support. (Informal. Do not have can be replaced with be without.) You may think you’re in the right, but you don’t have a leg to stand on. My lawyer said I didn’t have a leg to stand on, so I shouldn’t sue the company.
I am pulling your leg.
It cost an arm and a leg.
You haven’t got a leg to stand on.