Wendy's tweeted sarcastically on Monday, "Can't wait to try a burger from the place that decided pancakes were too hard."
IHOP — or IHOb — responded: "We don't want any beef with you, we just want to share our beef with the world."
Wendy's also tweeted what appeared to be a snide comment on IHOP's name change.
"Remember when you were like 7 and thought changing your name to Thunder BearSword would be super cool?" it said. "Like that, but our cheeseburgers are still better."
Later Monday, Burger King also rolled out a new name: Pancake King.
The burger chain, which serves pancakes for breakfast, changed its name on its social-media channels and updated photos to put more emphasis on pancakes instead of its famous Whoppers.
When one Twitter user asked whether Burger King had a grill that IHOb could borrow, "Pancake King" responded with a Taylor Swift-inspired allusion to its new identity.
"Sorry, old Burger King can't come to the phone right now..." the chain tweeted — a clear reference to Swift's song "Look What You Made Me Do."
"Inspired by the International House of Burgers announcement, we are also changing our name," A&W Restaurants tweeted with an image of an upside-down logo. "(Please do not ask what it means — we don't know either.)"
Steak 'n Shake took aim at the reason behind the name change, tweeting, "A replica by definition cannot be as good as the original. The original #Steakburger was created by Steak 'n Shake in 1934."
The message behind the IHOb madness is the launch of the chain's Ultimate Steakburgers, a seven-burger lineup that includes options like the Big Brunch Burger, the Cowboy BBQ Burger, and the double-decker Mega Monster Burger. For a limited time, the burgers are available at IHOP locations with unlimited fries and a drink starting at $6.99.
Chili's posted a video of its own burger in response to IHOP's announcement.
"We don't usually throw shade, but seriously? That's what all that was about?" the chain tweeted.
Waffle House seemed ready to subtweet, coming out with a promise that it would stay away from burger-centric rebrands.
"Long-term consistency trumps short-term intensity. - Bruce Lee," the brand tweeted.
"We're as serious about pancakes as @IHOb is about burgers," Red Robin tweeted, along with a link to the chain's burger menu. Red Robin does net sell pancakes.
The Texas-based burger chain promised it wouldn't follow in IHOb's footsteps.
"As much as we love our pancakes, we'd never change our name to Whatapancake," the chain posted on Twitter.
"We are excited to announce that we will be switching our name to Pancake Castle," the chain tweeted.
While not a fast-food chain, MoonPie wasn't a fan of the IHOb rebrand from a marketing standpoint.
"We've worked really hard for like 100 years to get people to remember our brand name so if it's cool with everyone we're just going to stick with MoonPie thank you," the treat brand tweeted.
Hot Pockets decided to invent a sloppy new logo based on the IHOb news.
The brand tweeted: "bocket like it's hot."