A childish threat used by women, particularly when in environments that would cause embarrassment to the guy they are with. Most often used by girls who were only childs or who think of themselves as princesses.
Although it seems like a hollow threat, can be extremely effective. Often, however, leads to unhealthy relationships as the threat begins being used more and more often and for mundane things. Generally used when a girl thinks she has a lot of hand in a relationship.
Date 2 (appropriate use):
Guy: Hey babe, lets go to second base
Girl: Stop taking my chastity bra
Guy: Come on babe, I want to make you queel
Girl: I'm gonna yell!
Date 6 (mediocre use):
Girl: I want the last avocado bruschetta.
Guy: Let's split it.
Girl: I'm gonna yell.
Guy: Fine, have it.
Date 12 (inappropriate use):
Guy: I got you this flower babe.
Girl: WTF is this ugly ass daisy. I'm gonna yell.
Guy: No please don't! What do you want!? Anything!