... hd is high definition
If you mean how does one spell 'serious' using chatspeak, that would be SRS.
'Ke eskola' is chatspeak for 'que escola', which means 'which/what school'.
High Definition
Yes, you could call it that, or 'sms'-ese :o)
Typical abbreviations and emotions used mainly in chatrooms. A chatroom language, kinda.
HD means hemodialysis in a medical context.
LBAR is a chatspeak synonym for LOL. It stands for Laughing Bad as R*ss. The phrase has its roots in the Caribbean, specifically Barbados, where r*ss refers to the rear end.
The Zune HD does not have a Skype app, if that's what you mean.
Wtev, watever, whtevr, w/e, w.e, etc
A single abnormal gene produces HD. In 1993, scientists finally isolated the HD (Huntington's Chorea) gene on chromosome 4.
heavy duty
Because, like chatspeak, if you remove all of the vowels from Pokemon, it becomes pkmn. So, yeah.