A growth on the artery wall is 'choking off' the blood supply.
He was 'choking back tears' as he talked about his late wife.
She 'choked' to death. = She died by 'choking'.
(..) but perhaps it will be better for us. I've retired. - I wanted to quit. - So why don't you? Well, Jerry, it's coming. Just don't choke me to death. - Bring Tanzinho down. - But I can't keep the other two here! Amos is sold subject to contract. Unless there's anything defective. (..)1989 Dva lidi v zoo