For pimp-ass mofos and gangstas;

Usually when one pinches the sides of your collar, usually on a polo or dress-shirt. You pinch the sides, and pull them up in self appraisal. It's a way of saying to the world, "look at how great I am". Almost exclusively male.

For preppy teenaged boys and girls;

Usually when the boy or girl unfolds the collar of a polo so that it stands straight up around the neck. It's supposed to be 'cool', but you can sometimes come off looking like Batman.

A buzz word being used to refer to creators and influencers forming or encouraging unhealthy relationships with their fans. Usually used in the context of young audiences feeling they have a relationship with the influencer due to the huge amount of the influencer’s content they consume. The influencer in question, however, is unaware of the fan’s existence other than the general knowledge of having fans. Common examples include Dream and his stans. These relationships are exacerbated by the influencers confirming they have more than a creator-to-viewer relationship.

The word is circulating due to various YouTube essays about the phenomenon using the word, and therefore people who enjoy complaining about influencers repeating what they heard in the video in any comments section they can find.