open sesame!
A magical phrase from the Ali Baba story, used to command something to open. In Japanese, it is a set expression, often used playfully or in reference to the tale.
When he shouted "Open sesame!", the stone door opened.
This door won't open even if you say "open sesame".
Full kanji spelling; rarely used in modern Japanese.
Kana-katakana spelling; used for emphasis or in children's contexts.
From the Arabic phrase 'iftaḥ yā simsim' (open, O sesame), via the story of Ali Baba and the Forty Thieves. The Japanese form is a direct translation using 開ける (to open) and ゴマ (sesame).