butt in phrasal verbphr v a) INTERRUPTto interrupt a conversation rudely 插嘴 b) INTERFEREto become involved in a private situation that does not concern you 管闲事 on They don’t want outsiders butting in on their decision-making. 他们不希望有外人插手他们的决策。
butt in• Will you please stop butting in!• Mom, Joe keeps butting in and he won't let me finish my story.
→ butt in at butt2(1)