On that day, SECRET NUMBER uploaded a group photo on Instagram showing the members holding a white sheet with the word LOCKEY printed on it. Following this, their management company took to Twitter to share the meaning of the fandom name. Vine Entertainment initially stated, LOCK + KEY: Fans are a key to Secret Number. LOCKEY is pronounced as lucky, which means lucky. Also, therefore, LOCKEY means fans are lucky people who already have Secret Number.
[NOTICE]
This is a notice about the fanclub name LOCKEY .
LOCKEY s exact meaning is LOCK+KEY; people who become KEYs that open the locked appeal of SECRET NUMBER. SECRET NUMBER (시크릿넘버) (@5ecretNumber) January 8, 2021