One of the most popular (and bizarre) trends of the 21st century is calling famous people "Mom" or "Dad." Some celebs, such as Chrissy Teigen and Mark Hoppus, don't mind it, while others are 100% not down with it, as evidenced by Hayley Atwell.

Usually, these tweets are simply just "Mom" or "Dad," and that's all, but some are much more explicit. One celeb who's no stranger to being called "Dad" on Twitter is former Disney Channel star Cole Sprouse.

On Wednesday (Jan. 27), Sprouse tweeted out this reflective thought.

But when "Sonny with a Chance" star Doug Brochu responded with a solid point, Sprouse retorted with the perfect explanation.

Naturally, the fan reactions were nothing short of magical.

Some were speechless.

While others embraced this truth.

A few were curious about the whole thing.

Some just wanted him to stop.

And several simply couldn't help themselves.

(Sprouse and his twin brother Dylan starred in "Big Daddy" when they were little, in case you've lived under a rock for the past 17 years and don't understand this pun.)

Of course, this isn't the first time "The Suite Life of Zack and Cody" star addressed these strange comments. He spoke out about them in Dec. 2014 in true Cole fashion. ???

Moral of the story? If you're gonna tweet at Cole, be prepared for anything.