very thin especially from disease or hunger or cold; "emaciated bony hands"; "a nightmare population of gaunt men and skeletal boys"; "eyes were haggard and cavernous"; "small pinched faces"; "kept life in his wasted frame only by grim concentration"
When a racecar on the outside cuts-off a car on the inside while going down into the turn, causing the car on the inside to slow down, to avoid an accident, and fall in behind.