1 definition by Word slayer18769

When a parent deliberately puts forth ill symptoms on their child via nasty ass; poisoning food with dingleberries; farting through the vents
Bob you're butt muenchousen by proxy has gotten dangerous, timmy had to be on a ventilator last night.
by Word slayer18769 October 22, 2020
Get the Butt muenchousen by proxy mug.