also: じょっぺん
noun
Hokkaido dialect for a key. Used in everyday conversation in Hokkaido.
じょっぴんを忘れて家に入れなかった。
I forgot my key and couldn't get into the house.
noun
Hokkaido dialect for a lock. Can refer to the locking mechanism itself.
このじょっぴんは固くて回らない。
This lock is stiff and won't turn.