When you heavily obsess about jews and judaism so that you have to post content about their ethnicity, culture, history or religious methods every day. (Can be applied to jewish or non jewish people)
User 1: "Did you know, that Drake is jewish?"
User 2: "Man nobody cares, stop jewposting"
When something is really fuckin good.
A: Damn, this music is really good.
B: Yeah, shit is lit af. Turn that up.