Please knock before you burst in.
burst in
idiomto enter suddenly and unexpectedly
The children burst in to show us their new toys while we were talking.
Just as the lawyer began her closing argument, the witness burst in with new evidence that changed everything.
- 01
burst into tears
To suddenly start crying or sobbing.
- 02
burst out laughing
To start laughing suddenly and intensely.
- 03
burst someone's bubble
To disillusion; to disabuse someone of a false notion or rationalization that has grown comfortable.
- 04
last burst of fire
A final effort, a final attempt before stopping.