Sharking

The act of continuing to work, move around, or accomplish tasks in an attempt to put off the inevitable physical crash that you know is coming, in order to be able to finish something important, such as driving home after work, or finish a critical school or work assignment on a tight deadline. Because much like a shark, the moment you stop moving, you're going to collapse into a puddle and drown.

"How are you doing."
"I'm really sharking hard right now. Gotta keep moving enough to finish these few things. Then I can stop and rest."