The act of a man putting his penis between his legs to create the mangina. Except for extreme cases, tuckering is absolutely prohibited on a normal basis. Tuckering is usually only permitted in times of dire need, such as when a butch or sheman is coming on to you in a bar/club.

the art of remembering an arousing occurrence or some porn you watched while masturbating, often handy if you have no porn or your in the shower

Being a try hard in an everyday class of gym.