by Braidsfordays July 31, 2018
The 10th anniversary of a first date. Typically celebrated with dry anal from one of both of the partners. Can also occur simultaneously with a ceremonial human centipede.
My wife and I didn't know what to do for our Sandpaper Anniversary, so I suggested meeting up with Ronaldo and Rebecca for a desert-dry human centipede.
by Monsignor Diablo March 16, 2020
the date on which an event occurred in some previous year, but the event is something that doesn't exist anymore and haunts you.
by pbsh July 4, 2018
by david_the_great April 11, 2021
A recurring date which marks the day of the year that a lady met her future husband due to his having done welding for her.
Celebrating a welding anniversary is often a very satisfyingly-pleasant experience just in itself, of course, but it can also serve to further "weld" the bond that the couple feels for each other.
by QuacksO October 28, 2018
"Urban Dictionary's 10th anniversary"
by OXFORD OFFICIAL June 18, 2019