(v.): the act of wearing multiple layers of clothing directly on top of one another to stay warm in the fall and winter whilst continuing to be a fashionable motherfucker.
Girl A: Omigod Tom looked SO hot on NYE
Girl B: It's the layering; he stays warm while staying hot ;)
Girl C: He wore a full-zip Billabong hoodie over an old t-shirt. . .
Girl D: #CALife