How can you unlock /clubdance?

@MahouShojoKrinen 

Subscription status has no effect on emotes.  Emotes are unlocked when purchased on a character from the Cartel Market or from a pack and then used on that character.  To use them on a different character, you have to go to your Collections window with CTRL + C, go to the emotes section and then purchase the unlock for the specific emote you unlocked.  Once purchased you can go to the collections on any character to redeem the emote on any other character.

If you feel that the emote should unlocked already, you can email support@swtor.com with that emote, your Display Name, Character Name and server and they can investigate from there.

Thank you for your reply, I suppose I should be more specific.  I understand that the emote is not intended to be unlocked as it stands.
The emote is nowhere to be found on the cartel market, and the tool-tip for locked emotes suggests that some are tied to legacy unlocks or such.
Since I cannot find this specific emote in the cartel market, I am wondering if there is a reason, or if not, what the specific way to unlock it would otherwise be.

That's-  more than a little bit disappointing and also incredibly frustrating.  Thank you for your answer.