barge_in
1. [ verb ] enter uninvited; informal
Synonyms: gate-crash crash
Examples:

: "let's crash the party!"

Related terms: intrude gatecrasher
2. [ verb ] break into a conversation
Synonyms: break_in put_in butt_in cut_in chisel_in chime_in
Examples:

"her husband always chimes in, even when he is not involved in the conversation"

Related terms: interrupt interrupt
Similar spelling:   bargain
  bargeman
  Barragan
  bargainer
  bargaining
  barracking