godan verb (-ru), intransitive verb
Uninvited involvement in others' affairs or conversations, often with a negative connotation.
彼はいつも人の会話にでしゃばってくる。
He always butts into other people's conversations.
godan verb (-ru), intransitive verb
be forward; be pushy; show off
Acting assertively or drawing attention to oneself in a way that is seen as overstepping or annoying.
会議ででしゃばるのはやめたほうがいい。
You'd better not be pushy at the meeting.