Sum up the lyrics of a song (or band in general) into one sentence.

Rammstein- "We're fuckin German, let's fuck"

Marilyn Manson- "Fuck your guns, god and government; interpret my lyrics and become enlightened"

Meshuggah- "Fuck to this rhythm, we dare ya!!"

John5- "Seriously guys, this is what Marilyn wouldn't lemme play on his albums..."
 
Naglfar - Force of Pandemonium

"ill destroy you and everything else too" blah blah balha
 
Necrophagist (any song)

"Yea, dying people and mutilated organs are fun....OOOOOOOOOOOOOOOORRRRRRRRRGGGGGGGHHHHHHHH"
 
Black Metal 1st Reich --> "Black Metal 1st Reich".

And more seriously : Death -> "Your conscience is your judgement, because jealousy is symbolic when the 1000 eyes of your inconscient are nothing but everything, and the flattering of overactive cosmic comprehension heals the patterns, dude."