DXB?

It is frustrating to memorize silly abbreviations for small words. I was chatting with my friend and she was telling me that her boyfriend is in DXB now. I was like what is dxb? Can't think of any place that has a 'd', 'x' and a 'b' in it's name. DXB is apparently the short form of Dubai. Since I had to ask her which place she meant by that silly abbreviation she typed... she was amazed that I did'nt know that. It's totally meaningless and doesn't make any sense to me. I don't know why the creator made such an abbreviation. There was a time when I didn't know what 'lol' was. It's apparently 'uncool' to not use this lang especially when your in a cool party with the hunks gaping at you. Wotevaaa...... who am I to say!.. I am no one to comment on the World of Web Lang.