To barge in is to enter or interrupt rudely. Barge in without knocking, sorry to barge in.
The rudeness is in the suddenness rather than in anything said. A barge is a heavy slow boat that cannot easily be stopped, which is the picture.
1phrasebarge inTo enter or interrupt rudely.
“He would barge in halfway through every meeting.”
barge in is a phrase.
Practised in Phrasal Verbs