磕碰儿 kēpèngr crack Definitions Defs Origin Strokes Stroke Words Sentences Sents kēpèngr crack 磕碰 kēpèng to knock against to knock against; to bump into; to collide with (usually of objects)儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.kēpèngr setback 磕碰 kēpèng setback (figurative) a setback; a minor frustration or obstacle in life儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.