"Thank you, Mr. Helpful!" ExplanationJay's reaction to Cole's advice in the episode "On a Wish and a Prayer"; used to point out similar Captain Obvious statements.
Ninjago: EndgameExplanationWhen the promos for Season 10 were released, several fans would reference the Avengers film. Would end up getting revived with the teaser of the second poster for Season 15, which is a direct homage to Endgame.
"REVENGE!" ExplanationAspheera's hammy delivery and overuse of that line earned some fans. It's repetitiveness is even acknowledged in Season 15 by Pythor of all people, who enjoys making fun of the line.
Coles Car ExplanationA meme originating on Reddit supposedly created to discourage low quality content by commenting the words "Coles Car" under perceived low-quality posts.
Weekend WhiplashExplanationThe tumblr Ninjago fandom will occasionally spam a cursed concept in an attempt to get the Ninjago tag trending. Some examples are Once-ler Morro, Traffic Cone Lloyd, Lasagna Arms Cole, and Rainbow Mohawk Lloyd.
"No! It can't be!" ExplanationZane's words, along with a few Big "NO!"s, upon finding out he's a robot. Usually used to respond to something in complete horror and disbelief.
Due to the show being a Long Runner, the series' massively convoluted and sometimes surprisingly dark lore tends to be the subject of numerous jokes.
Bounty Abuse ExplanationMuch like Zane, the Destiny's Bounty has a habit of being destroyed multiple times across several seasons.
Harumi's Apology ExplanationAmong a list of (fake) leaked episode names was an episode called "Harumi's Apology", which fans quickly interpreted as Harumi releasing a Youtube Apology Video or that the episode would just be 11 minutes straight of Harumi apologizing to Lloyd for the long, long list of crimes she's committed.
"You have been invited to join the C.O.C.K." ExplanationThe Council of the Crystal King, the villainous faction of Season 15, has an…unfortunate acronym. While it's never used in official media for obvious reasons, some fans went on with calling the council this, often as a Double Entendre.
What the heck is Lloyd's element? ExplanationDue to being very poorly defined and the show having referred to them by multiple names throughout its run (Green, Power, and Energy), a popular topic of debate among the fandom is what Lloyd's Elemental Powers actually are. One particularly memetic conclusion is dubbing him the Master of "What" due to him saying said word incredibly often.
"Fada would not want you to do dis, brudda!" ExplanationWu attempts to convince Garmadon to not leave the Underworld at the end of the pilot episodes by saying "Father would not want you to do this, brother!", but his accent inexplicably and drastically changes for that one line. The fandom often pokes fun at how goofy this line sounds, especially since it's in (what should be) a tense scene. The line was eventually revealed to be a holdover from Wu initially having a Japanese accent that somehow ended up in the finished episode.
"Long before time had a name, the first spinjitsu master created Ninjago."ExplanationThis quote from the show's opening was used as a Bait-and-Switch for other commonly memed things, often with a picture of Sensei Wu to go along with it.
"Unfortunately, we have an imposter among us." Explanation When Kabuki Mask/Harumi reveals that there is a spy who's infiltrated the C.O.C.K.'s meeting, she uses an... interesting phrasing to warn the others.
