this, that, and the other determiner 1noun 1 determiner1 •(informal) Particular items belonging to a large, diverse set, but items of the general kind of item indicated.She meant to use the cumbrous machine to pick out this, that, and the other interesting person from the muddle of the world. — 1919 noun[plural only]1 •(informal) A wide range of actions, circumstances, characteristics, topics, or other items.Anyway, we were sitting here doing this, that, and the other, and she said she positively was not going to do the other any more with Carstairs sneering at her while she did it. — 1943