(Verb) Sh-naw-sing.
(a) The act of butting into a private conversation in which you are not necessarily welcomed, but supply your opinions anyway. (b) Often refers to unwelcomed opinions that are vulgar or obscene and does not have much to do with the nature of the conversation at hand. (c) Someone butting their nose into other people's affairs in a rude and disrespectful or unhelpful matter. May not always be in a mean manner, but is usually seen as an unwelcomed act of getting attention.

When you eat dirt for the first time and leave your family to build a shack in the woods