burst someone's bubble
To disillusion; to disabuse someone of a false notion or rationalization that has grown comfortable.
I hate to burst his bubble, but he is going to be disappointed if he tries that idea.
ADJ
short
After the short burst of laughter, the classroom became quiet again.
sudden
The sudden burst of laughter from the children filled the entire classroom.
rapid
There was a rapid burst of laughter from the children when the clown fell down.
intense
The intense burst of applause filled the concert hall as the musician took a bow.
PREP
in ~s
The rain fell in sudden bursts throughout the afternoon.
~ of
ADV
suddenly
apart
The old wooden door burst apart when the firefighters broke through it.
VERB + BURST
be about to, be going to, be ready to
The balloon was about to burst when the child kept blowing air into it.
PREP
with
She was bursting with excitement when she heard the good news about her promotion.
PHRASAL VERBS burst into sth
ADV
suddenly
immediately, instantly, promptly
When he heard the news, he immediately burst into laughter.
VERB + BURST
be about to, be going to, be ready to
She was going to burst out laughing when she saw the surprise party.