Dear Facebook friends.
We need to talk about ‘HBD’. Not to be confused with the virus (that’s HPV). I’m not talking about the three Scrabble letters that will consecutively get you four, three and two points.
I’m talking about the acronym formerly known as “happy birthday”.
No vowels. No “happy”. Not even “b’day”, which was abbreviated enough but still kinda cute in its own way. “Happy birthday” is now a three-letter word. It’s not even a real acronym: ‘HB’ would be technically correct.

But this is the internet, and the internet cares not for mouthfuls like "appy" and "irthay". "HBD" is enough.
"Happy birthday" with a series of cake, champagne and love heart emojis means a lot more than "HBD".
"Happy birthday" with an "xoxoxo" is still worth more than "HBD".
This meme is worth more than "HBD":

"HBD" is what you write when: