Beeps-Belly 

The gastrointestinal condition that inevitably follows one's visit to famed Canadian restaurant chain "Boston Pizza", also known as "BP's".

"My stomach is absolutely destroyed after that bandera bread at BP's last night"
"Sounds like a classic case of beeps-belly"

Beeps-Belly by Rory MikC January 17, 2022

Belly bees

Anxious, nervous or excited; alternate to “butterflies in one’s stomach”

I can’t wait to see you tomorrow. I have the belly bees.

Belly bees by Kevin C+H December 17, 2018