Means "classic clash". A simplified term for "ye typical state of perpetual chaos and/or constant acrimonious disagreement". Refers to any well-known type of dysfunctional relationship or partnership that is traditionally fraught with frequent strife and extended spells of loud/heated bickering. Usually used in a non-violent context to indicate verbal and emotional conflict only.
My brother and I have the clashic sibling relationship --- we holler and fight all the time, but we totally love each other to death.
by QuacksO November 22, 2011