cockles n. + Add to list US //ˈkɑkəɫz// UK //kˈɒkəlz// cock·les Synonyms Synonyms cocklecrumpleknitpuckerriffleripplerufflerumpleundulate Idioms1 entry01warm the cockles of someone's heartEspecially of food or drink (particularly an alcoholic beverage): to cause someone to feel deeply warm and comfortable; to comfort, to satisfy.