* AngelDevilShipping: Flaky is portrayed as a sweet, loving, fearful, kind, [[{{Moe}} naive girl]], while Flippy is malicious, [[{{Jerkass}} Jerkass-ish]], perverted (many times, [[MurderersAreRapists a rapist]]) and sadistic. [[MemeticMolester And he almost always tortures or molests her in fanfics and fanart]].
* DracoInLeatherPants: Flippy, Lifty and Shifty.
* EvilIsSexy: Just as above.
* FoeYay: Flippy / Splendid, Splendid / Splendont and [[ScrewYourself Good Flippy / Evil Flippy]].
* HoYay: [[FoeYay Flippy and Splendid]], [[RedOniBlueOni Nutty and Sniffles]], [[{{Twincest}} Lifty and Shifty]],[[ThoseTwoGuys Lumpy and Russell]], Lumpy and The Mole [[note]][[ItMakesSenseInContext their half-literal blind date in the episode of the same name is the biggest reason]][[/note]], Handy and The Mole[[note]]Their ChainedHeat episode is the biggest reason[[/note]].
* LauncherOfAThousandShips: Both Flippy and Flaky.
* MemeticMolester: Flippy. He almost always molests or rapes other character in fanart.
** Splendid and Lumpy are this, too.
* MemeticSexGod: Flippy.
* MindGameShip: Flippy and Flaky are usually portrayed as this within the fandom, due to the fact that Flippy usually either rapes Flaky or tries to kill her and Flaky is so terrified of him that she tries to kill him as well. So, they basically kill one another, even though they like each other. Flippy and Flaky in the actual show are not far from this either.
* {{Moe}}: Flaky.
* TheWoobie: Flaky.