Tinkle Oath

The oath in which 2 or more people sit on a toilet and pee — while all saying an oath that they will all be friends forever. I SWEAR TO DEAR GOD THAT I WILL BE FRIENDS FOREVER WITH ____,______,______, (people/person) AFTER THIS TINKLE IS OVER.

Person One "We're gonna be friends forever"
Person Two "Not unless we do the tinkle oath"