ジャガーマンシリーズ ワイト(けものフレンズ) ワイトもそう思います チベスナマン 仲良し三人組(けものフレンズ) わかるマン
Jaguarman (ジャガーマン) is a Kemono Friends otoMAD that was uploaded in 2017, which paired Jaguar's scenes from Episode 2 of the first season with "Devilman no Uta" from the 1970s Devilman anime, sentence-splicing the vocals to fit the visuals. Two more videos were made, following up this otoMAD, using the openings from Shinzou Ningen Casshern and the 1969 Tiger Mask anime respectively. The thumbnails for each of these is Jaguar having her right arm raised.
The videos soon popped off on Niconico, spawning derivative meme/neta videos, successors and so forth, developing into its own minor meme series. The Jaguarman Series explicitly refers to those which have Jaguar as the focal figure (or, more narrowly, the original three otoMADs), while branches such as Wakaruman (fusing Wakari Tetsuya with the Devilman part of the meme) don't have to necessarily have her in such a position.