Jul 21st 2010 8:29PM Yes we do. FS and DC. Every single thing our class can do has been acronym'ed. my rotation: FS,PT,Ps,BB,DS,RS/IF,DC, etc.
In fact, that's why I love reading the Death Knight Forum. Our posts and responses are just like us: GCD-starved. You can call it ADD/ADHD, if you prefer. (Think about what I've just said, then think about every Death Knoob you've encountered.)