The Birdy Effect

The process by which any sufficiently timeless song will eventually get a stripped-down, slow tempo acoustic cover, usually featuring ethereal female vocals (à la Birdy or Ellie Goulding).

John Lewis Christmas ads are a gold mine for this.

"Why is this cover of Party Rock Anthem so depressing?" -The Birdy Effect

The Birdy Effect by Bbeorn October 15, 2020

The Berlin Bird Effect 

The phenomenon of internet user coming up with either the most creative and hilarious comment you’ve ever seen, or the most brain dead and insufferable bullshit to tweet.

Person 1: *sees clever funny tweet and then an insufferable one directly after*
Person 2: The Berlin Bird Effects a bitch isn’t it.

The Berlin Bird Effect by TotallyDinosaur October 3, 2023

The "Free Bird" effect 

When you're driving a car listening to Free Bird by Lynyrd Skynyrd and the solo comes on. You feel the need to go over the speed limit no matter where you are.

Person 1: "Bro I love this song!"
Person 2: "Hopefully The "Free Bird" effect doesn't happen."

The "Free Bird" effect by LesbianFish07 April 28, 2023