This is legit part of a song. Wiki has the best description: West appears in the second half, rapping idiosyncratic, nonsensical phrases based around the words “poop”, “scoop”, and “whoop”, after which the song abruptly ends.

YouTube comments also provide a great deal of insight and analysis.

• I have A S C E N D E D
• This low key scares the shit out of me
• P O O P P O O P
• I hate the scary FAR RIGHT message of these new tracks
• Tupac who?
• I came
• Test: what is Pythagoras Theorem
  Me:
• is this a real song??

The best.

Edit: Hahahahaha