"Well, #my2K means My Player in NBA 2K13," was my first thought. And I wasn't alone.
My2K is indeed the shorthand for the single sign-on account in NBA 2K from NBA 2K12 to NBA 2K13 this year. It hasn't trended like other NBA 2K hashtags have, but it has come up. Still, there's the 2K branding, and the fact that President Obama has appeared in NBA 2K since NBA 2K11, either in the game's championship cinematic or, amusingly, as a coach after 2016 in the game's career modes.
So, write your elected representatives. Tell them what #my2K really means to you.