pull the rug from under feet

Meaning

1. pull the rug (out) from under sb's feet

   to take help or support away from sb suddenly

From the same entry

• pull a fast one
• pull in different directions
• pull leg
• pull the other one
• pull out all the stops
• pull the plug on
• pull your punches
• pull rabbit out of the hat
• pull rank
• pull your socks up
• pull strings
• pull the strings