birkenstalking 

In large crowds or at festivals you stalk people who wear those super-ugly Birkenstock two strap sandals and you stomp on their toes for offending everything decent with their lack of sensibility.

"I'm bored with Imagine Dragons, let's go Birkenstalking!"

birkenstalking by Vhael January 9, 2016

Birkenstockings 

When someone (usually an older female) wears Birkenstock sandals with stockings.

Example 1: That old woman was rockin' the Birkenstockings!

Example 2: "WHAT ARE THOOOOOSE!?!?"
Person: Birkenstockings, young man!

Birkenstockings by SashJo July 28, 2016