I saw one get banned yesterday cause people were trying to be silly, and list things that hurt your raid to increase your personal DPS. Figured I'd try one that increases your DPS without negative ramifications.
Lord Marrowgar
Pretty much watch timers during bone storm and DPS your little heart out and avoid those fires. And use Earth shock during this time so you know that FS dot doesn't get you killed. It shouldn't but it has caused me to get agro before.
My guild uses the everyone under the boss strat so again watch timers and while the spike it up give a little more priority to nova, but switch UNTIL SPIKE IS DEAD.
DBS
This one is scary, but it helps. You get chat and voice cues to signify the start of this boss. When Gnomes (alliance) appears in the chat drop your totems, AND RUN OUT, when he actually voices gnomes pop a pot and run back in. This gives you a GCD at the beginning to use an attack instead of dropping totems. The pot in this instance can always be counted on to only lose 1 second since the encounter starts right after.
Rotface
Stand right behind one of his feet. As he turns strafe and continue to DPS. Reduces the time you ahve to run around him, and ensures you dot get hit me the spray.
Putricide
don't use BB in phase 1 or two. Frost giant's cleaver (for me) is a pretty close second weapon so I use that and switch in phase 3. Also use avalanche totem for those phases. In phase 3 switch to BB (if you have it) and the elemental ICC totem.
On the slime that blows up, position yourself so that the explosion blows you straight towards the boss. Reduces your run time greatly.
If you are not an engineer with rocket boots use a run speed enchant, not kidding...
On red ones run the red one away from the boss until about 60 % HP (judgement call). when you think you are far enough pop boots and run back to boss and resume DPS. Make sure you give your DPS enough space between you and the add to allow them to kill it.
That's all I got right now xD