GIDDAP Meaning of GIDDAP in English gidˈap, -əp verb imperativealso gid·dy·ap ˌgidēˈ- ; or gid·dy·up -ēˈəpEtymology: alteration of get up — a command to a horse to go ahead or go faster Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012