Kanye West -- I Didn't Curse THAT Much!!

Kanye West is pissed off at the Billboard Awards for heavily censoring his performance of "All Day" and "Black Skinhead" because he says they cut his audio even when he wasn't dropping profanities. 

Kanye's mostly-silenced closing act was the talk of the award show -- but sources close to the rapper tell us producers knew when he was going to curse because he gave them the lyrics exactly as he performed them ... and yet they yanked his audio for up to 15 seconds at a time.