Objects may be Psychadelic (originating from the fact that kush is a very potent strand of marijuana). They may be violent (in a funny way). They could be awe inspiring or just interesting to the individual that deems the object a kusher.
Joe2 - 'Yea its the only kusher that store had'
Jane1 - 'OMFG the fan glows as it spins?!'
Jane2 - 'Enough for you'
Jane1 - 'Ita kusherrrrr wooo'