"Dat ass used to give people hope." Explanation Mishearing of Batman's "That 'S' used to give people hope." line before he fights Supergirl.
Black Adam's new facial appearance has lead to many jokes about him being an Italian guido or even a superpowered Richard Nixon. Maximillian Dood and friends also like to compare with Crazy Gideon.
Similarly, Black Lightning's appearance in this game draws a ton of comparisons to Gucci Mane.
DAMMIT, DAMIAN! Explanation Batman exclaims this when Damian kills Victor Zsasz. Given his general disapproval of Damian, this obviously became a snowclone.
"Jaime tells me you skipped practice. / Have you been practicing, Jaime?" Explanation Many of Batman's intros to his allies is about him nagging them over combat training.
"Prove it to me!" Explanation Batman says this a lot due to the VA strike affecting the game's development before voice work was completed. The line has become a meme when someone makes a claim, and another repeats this line.
"Superman and I disagree." Explanation In a similar vein, Robin uses this line a lot during clashes.
"So was my father." Explanation Black Manta also gets this same effect, most notably with this quote.
Batman: Black Manta. Black Manta: So was my father. Batman: Prove it to me!
"Billionaire social justice warrior." Explanation Green Lantern calls Green Arrow this in one of their pre-fight interactions. Given that "SJW" is a insult used a lot on the internet (though the term predated the internet by a long time), it has become the center of a lot of attention.
"Soupman." Explanation Mishearing of Darkseid's "Superman" line whenever he utters the name. It's especially noticeable in his Arcade Ending, to the point that the most popular upload of it on YouTube is filled with comments making jokes about "Soupman".
"Tiddy window" Explanation Many commentators on Tumblr noticed Raiden's design leaves his shirt open providing a rare male example of Navel-Deep Neckline.
"RIP cameraman" Explanation Commentators feeling sympathy for the "cameraman" who receives all the The Fourth Wall Will Not Protect You abuse during victory cutscenes.
"Fighter Pack 4" Explanation After Fighter Pack 3 was announced to include the Teenage Mutant Ninja Turtles, many took a liking to saying something along the lines of "Fighter Pack 4: Naruto, Post Malone, the guy from The Emoji Movie. Depending on the person, it's either a well-meaning joke or a total insult, given the Turtles' Base-Breaking Character status.
"Wonder Bread:" Explanation A disparaging nickname Harley Quinn called Wonder Woman at one point in the game. It sat well with the players who don't particularly like Regime Wonder Woman, and it's not uncommon to see comments on YouTube referring to her as such.
"Dick Stick" Explanation A Fan Nickname for the Staff of Grayson, a gear which is memeticly rare and thus gets a lot of jokes made about it, especially on the Injustice subreddit.
"Dude, I could be gaming." Explanation One of Michelangelo's pre-match quotes, which gained popularity in 2021.
