おいおい Common word LinksSentence search for おいおいSentence search for オイオイEdit in JMdict 1. hey!; wait a minute!; whoa!See also おいAdverb (fukushi), Adverb taking the 'to' particle2. boohoo; waaaaOnomatopoeic or mimetic wordいぬ犬がし死んだとき時かれ彼はおいおいとな泣いた。When his dog died, he cried his heart out.Other formsオイオイ Discussions Log in to talk about this word.