The lyric “bath salt, bitin speakers in the face” is used in the song Lemon by N.E.R.D & Rihanna. It refers to a case in Florida a few years ago where a man was on bath salts and cannibalized another person, biting their face.
When one's speakers are reminiscent of construction and/or home demolition. This term is coined by a gentleman named Soulja Boy Tell 'Em, who is from the native land of Chicago.