also: みーっけ
interjection
found it!; found you!
Exclamation used mainly by children when finding something or someone during a search or game like hide-and-seek.
かくれんぼで、おにが「みっけ！」と言った。
In hide-and-seek, the 'it' person said, 'Found you!'
なくしたおもちゃを探していて、「みっけ！」と叫んだ。
While looking for the lost toy, he shouted, 'Found it!'
Childish or colloquial contraction of 見つけた (mitsuketa), with the つけ (tsuke) reduced to っけ (kke).