) It is a puddle of some indescript white liquid. There is nothing in the image like a specific texture, physics, dialogue, or a shadow of an "application tool" to suggest it has to be jizz and not milk or tinted water or paint. Even the pony in the jar seems more bored than disgusted or embarrassed or titillated. There is only the meme, and a few tags recognising that meme. Tagging it above Safe is like tagging a face-only cropped screenshot showing nothing saucier than a lidded-eyes grin above Safe because you recognise the scene from a porno film.