Derived from the Upvote function used in the online discussion board Reddit, this derogatory term is used to ridicule others for poor posting quality on discussion platforms; or otherwise conducting themselves in an immature fashion and in a manner which may be disruptive towards other users of the website. It is commonly used on the online image-based bulletin board 4chan, as well as other similar websites in which its users may share an aversion towards users of the website Reddit.

The act of giving credit to a circlejerker for his or her contribution to the reddit community.