A term for really, REALLY tight skinny jeans. Usually worn by those of a homosexual preference. Wearing leans may cause stress, broken bones, a crushed penis, and many other painful experiences.
"Whoa, have you seenCarl? He's totally wearing leans"
Dancing inappropriately, when a female is shaking her booty all up on you while your leaned back and your boy is holding you up so you can catch the lean
Guy 1: Dude I fucking hate that new yung lean song
Guy 2: Don't worry, the yung lean affect will kick in and you'll love it
Guy 1: Oh maybe you're right