Portmanteau of [[PornHub]] and [[Nijisanji]]. A [[meme]] spawned from a derivative of [[Nijisanji EN]]'s [[Pomu Rainpuff]]'s own NSFW [[Twitter]] hashtag (#pomuhub), which later became the the de facto NSFW tag of Nijisanji [[virtual youtuber]]s.

In the "classic" Nijihub depictions, the meme outfit consists small [[black bikini]] with "Niji" in white text on the right breast and "hub" styled like the PornHub logo on the left breast and being worn by a Nijisanji [[virtual youtuber]] talent, in a similar vein to the official PornHub bikini.  The strings connecting the bikini may be black or white.
Nijihub