UK and ANZ, [US and ANZ] doodad, US doohickey [noun] [C] [informal] - anything whose name you cannot remember or do not knowHave you got the doodah, you know, the thing you clean the bath with?She's all of a doodah (= in a state of confusion) about the wedding arrangements.
DOODAH
Meaning of DOODAH in English
Cambridge English vocab. Кембриджский английский словарь. 2012