This is the 2874th most frequent Japanese word.
っけ
"っけ" is a colloquial particle used to express uncertainty or to recall something, often seeking confirmation.
In this case, 'っけ' serves as a check of memory or understanding about the current situation.
今日は土曜日だっけ。
Today is Saturday, right?
Here, 'っけ' is used to express uncertainty or a question about past information, as in recollecting something.
あの映画、面白かったっけ。
That movie, was it interesting?
Here, 'っけ' is utilized to reconfirm or clarify something previously said or assumed.