I swear down on my nan’s grave - Rocketpoweredmohawk’s go-to line when he’s so angry he’d rat

Rocketpoweredmohawk’s go-to line when he’s so angry he’d rather bury his nan than let someone else win. It’s swearing with a side of revenge.

He said the race was rigged. I swear down on my nan’s grave he’s not even a little bit wrong.

I swear down on my nan’s grave I’ll punch him if he makes another stupid joke.

He said the car was broken. I swear down on my nan’s grave he’s just lazy.