burst up
Advanced (C1)informal
To suddenly start laughing a lot, or to break into pieces.
"The comedian's unexpected punchline made the whole audience burst up."
Hear it in context

Takopi's Original Sin anime English Dubbed (Takopi no Genzai) Complete Episode 1-6 2026
@FIRE REACTS!!! · 30:04
[music] Thanks to you, I only got a little burst up.

I Went to Antigua for the Food 🇦🇬
Davidsbeenhere · 141:00
and you beat it after finish for it to burst up.

Darren Sproles' All-Purpose Record 2011 Season!
NFL Throwback · 9:50
First down and Darren Sproles with a burst up the middle.

Why CPU Time ≠ Wall Clock Time! - Computerphile
Computerphile · 11:24
but it can burst up to 5 GHz I think at sometimes,

Why CPU Time ≠ Wall Clock Time! - Computerphile
Computerphile · 11:21
CPUs sometimes burst up, you know, like this is a 3 GHz machine,