n., adj., & adv.
--n.
1. the sound of alternate chimes, as of two bells.
2 colloq. an intense argument or fight.
3 colloq. a riotous party.
--adj. (of a contest etc.) evenly matched and intensely waged; thoroughgoing.
--adv. with vigour and energy (hammer away at it ding-dong).
Etymology: 16th c.: imit.