tipperPronunciation: /ˈtɪpə/Definition of tipper noun 1 (also tipper truck or lorry) a truck having a rear platform which can be raised at its front end, thus enabling a load to be discharged. 2 [usually with adjective] a person who leaves a specified size of tip:he’s a big tipper 3a person who dumps waste, especially illegally. tipper in other Oxford dictionaries Definition of tipper in the US English dictionary