An admission of jealousy. "I'm so jealous". An adaptation of the phrase "miso horny", which is a mutation of the phrase "me so horny", which is a poorly translated version of the phrase "I'm so horny". But with jealousy instead of horn.

Miso jelly could also conceivably be a type of food, which facilitates humourous use of the phrase as a pun.

Someone who is possessed by clout chasing. The original human is now gone and a demonic entity that feeds on clout is all that is left. An empty shell with no control of their actions, forced to blindly react to situations they think will bring them attention.