Telling someone whats up or what the deal is.
Telling a person how its going down or how it will be played out.
Or if one is about to begin rapping on a tasty track they will show how to do it by announcing that they are going to "Show em how the Tea Boil."
Tea in essence is the "situation" and Boil is the action verb to show what is happening or what is going on at that moment.
Dude My homie Reggies there? Show em How da Tea boil!
Translation: Dude my friend Reggie is there? Tell him whats up.
(before epic flow on rap track) Yo' Im gonna show em how the Tea Boil!
Example in rap: www.myspace.com/federalrezerve
copyright Federal Rezerve 2009