磕碰

磕碰	kē pèng	to knock against / to bump into / to have a disagreement / to clash
磕	kē	to tap; to knock (against sth hard); (esp.) to knock (mud from boots, ash from a pipe etc) / (fandom slang) to be into (a character relationship, dynamic, or trope)
磕	kè	variant of 嗑
碰	pèng	variant of 碰
碰	pèng	to touch / to meet with / to bump
碰	pèng	old variant of 碰