Burger King’s ‘Halloween Burger’ Is Having A Very Unusual Effect On Those Who Eat It

Well, this is an interesting side effect.

Burger King have released a 'Halloween Burger' to celebrate the impending scary season, it's pretty much the same as your standard Whopper, except it's dark green (because dying things green is now considered a great way to mark both Halloween and Paddy's Day).

Anyway, it appears that customers who've tried the limited edition burger have noted quite an unusual (ghoulish, even) side effect: it turns your poo green. Yeah.

Check it out.

The spookiest thing about Burger King's new Halloween Whopper? There's the very real chance it will turn your poop neon green. #greenpoop

— CandyCornApocalypse! (@AnthonyJRapino) October 2, 2015

The new BK Halloween whopper apparently has a little hidden "trick or treat" the #GreenPoop tweets are hilarious.

— Randi Rico WLWT (@RandiRicoWLWT) October 6, 2015

Burger King's black Halloween Whopper turns your poop green. Which is great, since Burger King diners haven't seen anything green in years.

— beth, who hates everything™ (@bourgeoisalien) October 6, 2015

How was my turd after eating the #HalloweenWhopper ?#GreenPoop pic.twitter.com/tAL22JHPwY

— Rocko Ostolaza (@rockoide) October 5, 2015

I hate bk, but I kinda wanna get the black bun whopper to see if my poop actually turns green! #GreenPoop

— Kayla Anderson (@KayluhAnderson) October 5, 2015

While some people are enraged, others are just happy about the birth of truly great hashtag.

We live in the golden age of twitter. Has there ever been a finer hashtag than #GreenPoop?

— josh wells (@joshaintfunny) October 6, 2015

Am I the only person who thinks the #burgerking #GreenPoop thing is the funniest news thing in actual years? Omg. Lol forever. ????????

— Wiz Corlifa (@WizCorlifa) October 6, 2015

Lol forever indeed.

READ NEXT: What We Have In Dublin Isn't Really A Housing Crisis – It's A Usage Crisis