1. Enter uninvited or without permission
   "He barged in during the private meeting";
   - crash [informal], gatecrash
    
2. Break into a conversation
   "her husband always barges in, even when he is not involved in the conversation";
   - chime in [informal], cut in, put in, butt in [informal], break in, chip in [informal]

Derived forms: barged in, barges in, barging in

Type of: cut off, disrupt, interrupt, intrude, irrupt