A kinder, gentler, and more onomatopoeia-esque term for the mentally retarded. Initially coined by way of the TV show _Life Goes On_, which had as its theme song the Beatles song of the same name, which begins Ooblah-dee, ooblah-dah. For a detailed description of the word's origin, see http://www.itsthecatsass.com/frame_ooblah.html. Example: The short bus is jam-packed with droolers and ooblahs. [ED. A kinder, gentler example couldn't be found.]
OOBLAH
Meaning of OOBLAH in English
Slang English vocab. Английский сленговый словарь. 2012