perrear

It's when a girl dances really close to a boy (or sometimes another girl) with her back toward him and her face faceing the opposite of his. Usually dancing to hip-hop or reggaeton. In english it's like the word juke.

Me gusta perrear. Quiero que me perrees

Hanguear

to hang out or to chill.

Ex: Que estas haciendo? Estoy hangueando.
Que vas a hacer? Voy a hanguear.

Tiraera

A dis song; a song that disses another artist.

"Hey, did you hear that new tiraera by Daddy Yankee."
"Yeah, he was dissin' Don Omar."