marching up to the cannons mouth (verb) run the gauntlet: go through an ordeal
Sinonime: all skin and bones, angular, attenuate, attenuated, beanpole, beanstalk, bony, cadaverous, delicate, emaciated, ethereal, featherweight, fleshless, fragile, gangling, gangly, gaunt, haggard, lank, lanky, lean, lightweight, meager, narrow, peaked, pinched, pole, puny, rangy, rarefied, rawboned, reedy, rickety, scraggy, scrawny, shadow, shriveled, skeletal, skinny, slender, slight, slim, slinky, small, spare, spindly, stalky, starved, stick*, stilt, subtle, thin as a rail, threadlike, twiggy, twiglike, undernourished, underweight, wan, wasted*, wizened