You are reading rather useless literature, Mohammad.
i'll roke your world -- I will strongly affect/disrupt your daily life and/or world view.
let's rock -- let's get going/dance/get in trouble/enjoy ourselves.
toss somebody -- ?
grotesque(i want to know it is formal?) -- none of this stuff is formal, Mohammad; it is all street slang. 'Grotesque' has a more formal usage, but here it means 'unattractive', 'repellent'.
your electric has been canceled or has been disconnected(wh ich one is more common) -- your electricity has been disconnected/turned off.
have tou ever been to a shrink? Have you ever had an appointment with a psychiatrist?
have a brain to fry -- have intelligence which you could potentially destroy with drugs or music or bad experiences
A.get a broom - get a broom
B.you get a frikin'broom(what dose frikin'broom) No , you get a f*cking broom
doofus -- stupid/silly person
it worth a bundle -- it's expensive
break sth to sb(i know without context it is difficult) -- give information to someone that will be emotionally difficult for that person to learn
are you no crack? -- should this read 'on crack'? -- in that case, it means
are you using smoked cocaine?'
Quit reading this trash, Mohammad, and find yourself a decent piece of literature if you wish to learn the language. Few of these phrases will be used by anyone you wish to meet, and most of them will quickly disappear from the language. They are slang of the moment only.