1
general::
Phrase(s): burst in (on someone or something)
to enter a room, interrupting someone or some activity. (Often without knocking or seeking permission to enter.) • Tom burst in on his sister and her boyfriend while they were kissing. • I must ask you not to burst into my office again. Whatever it is can wait., Phrase(s): burst in (with something)
to interrupt with some comment. • Ted burst in with the good news. • He burst in to tell us about his new car., Phrase(s): burst in ((up)on someone or something)
Fig. to intrude or come in thoughtlessly and suddenly and interrupt someone or something. (Upon is formal and less commonly used than on.) • I didn’t mean to burst in on you. • She feared that someone would burst in upon her., Phrase(s): burst in(to some place)
Fig. to intrude or come in thoughtlessly and suddenly. • Ted burst into the room and sat down right in the middle of the meeting. • Wasn’t it very annoying of him to just burst in?
McGrawhill's American Idioms And Phrasal Verbs