a load off (one's) feet
A break to rest, usually by sitting down. Do you mind if I sit down for a moment? I need to take a load off my feet.
*a load off one's feet
Fig. the weight of one's body no longer supported by one's feet, as when one sits down. (*Typically: get ~; take ~.) Come in, John. Sit down and take a load off your feet. Yes, I need to get a load off my feet. Fm really tired.