Second rule being EMO
Skinny jeans have a very totally fit through the legs and ended with small leg opening, depending on the size of you choose. Skinny jeans known as pegs, skinny pants, pencil pants, drainpipes, etc. Skinny jeans is very taper at the bottom of the leg, it has super fit size for your leg, that's why emo boys sometimes looks like a girl, because the girl wear it often.
Sometimes wear skinny jeans completely convert boys into girls, that's sounds bad right ? But anyway, the emo fashion demands that. So, the boys who being emo wearing emo fashion got insulted frequently, but it doesn't matter, if you choose your style to be right that. :p
These are some pics i took from google about emo skinny jeans