kash-ee-uhs-ing -Verb: To Cassius a claim, cassiusing a set
1. A form of hyperventilation pertaining to the method used as originally by Cassius Edwards of Toronto. The individual stands parallel against the wall; bends their torso at an angle perpendicular to the wall and proceeding to hyperventilate as fast as they can until they feel faint. They then stand vertically again, constrict their trachea with their hands and hold both their breath and throat until they are faint.
2. Holding a bong toke really fucking long because it is kif or your last little bit of that fiyah bundem kush