A deadly, suicide-inducing disease commonly caused by exposure to the English class of year nine extension. The word is rather self explanatory, as symptoms contain: Ebola, cancer, and brain tumours that result of post traumatic stress disorders (from the disease). It also feels as though you were struck by all of the bombings that took place in the battle of Hiroshima.
"Oh no James," exclaimed Jonno. "I think I feel a case of Ebancershima Brain Tumours creeping up on me, ready for the three way murder?"