rot off
中上級 (B2) neutral
To fall off because it has gone rotten and can no longer hold together.
"Several fence posts had rotted off at the base and needed to be replaced."
文脈の中で聞く
Office Moments that feel like Domestic Bliss - The Office US
The Office · 15:15
I mean, the pumpkin should rot off of my head in a month or two.
Jim's been looking at me a lot - Cold Opens
The Office · 17:30
I mean, the pumpkin should rot off of my head in a month or two.