pull the rug out

pull the rug (out) from under (someone)

To suddenly or unexpectedly remove or rescind support, help, or assistance from someone; to abruptly leave someone in a problematic or difficult situation. I felt like someone had pulled the rug out from under me when my health insurance said it was going to stop paying for my medical bills. I'd love to quit my job, but I just can't pull the rug from under my team like that.
See also: pull, rug

pull the rug out (from (under) one)

To suddenly or unexpectedly remove or rescind support, help, or assistance that one depended on; to abruptly leave one in a problematic or difficult situation. I felt like someone had pulled the rug out from under me when my health insurance said it was going to stop paying for my medical bills. I'd love to quit my job, but I just can't pull the rug out from my team like that. You really pulled the rug out when you said you were going to stop helping me pay my bills.
See also: out, pull, rug
Farlex Dictionary of Idioms.

pull the rug out (from under someone)

Fig. to make someone or someone's plans fall through; to upset someone's plans. Don pulled the rug out from under me in my deal with Bill Franklin. I was close to getting the contract until Don came along and pulled out the rug.
See also: out, pull, rug
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • brief (someone) about (someone or something)
  • brief about
  • accompany (one) on a/(one's) journey
  • accompany on a journey
  • a stranger to (someone or something)
  • be out of (one's) league
  • be out of somebody's league
  • be in bad with (someone)
  • (one's) heart goes out to (someone)
  • (one) puts (one's) pants on one leg at a time
References in periodicals archive
And no matter how much some of the national newspapers seem determined to pull the rug out from beneath the property market, people will always want a home of their own and property will remain a good, long-term investment.
THERE'S no place like your [...]