also: うっきっきー
interjection
ook; ook-ook
Onomatopoeic representation of a monkey's cry, often used in manga, anime, or casual speech to mimic or refer to monkeys.
猿が木の上で「ウッキー」と鳴いた。
The monkey went 'ook' up in the tree.
子供が猿の真似をして「ウッキッキー」と言った。
The child imitated a monkey and said 'ook-ook'.