(you) have got to be kidding

I am very surprised and cannot believe you are serious.

You want me to drive into the city in this rain? You've got to be kidding.

• cut and thrust of
• cut and thrust of something
• cut an ... figure
• cut an figure
• cut an interesting figure
• cut an [interesting/ridiculous/unusual etc.] figure
• cut an ridiculous figure
• cut an unusual figure
• cut a rug
• cut a swath
• cut a swathe through
• cut a swathe through something
• cut a swath through
• cut a swath through something
• cut a wide swath
• cut both ways
• cut coat according to cloth
• cut coat according to your cloth
• cut corners
• cut dead
• cut down to size
• cut from the same cloth
• cut in
• cut it fine
• cut it out