Earrup
A fake word rappers use when they're too lazy to say the real ones. It's like a sound effect for when they mess up and don't want you to notice.
Yo, I said 'Earrup' because I forgot the word. I was high and tired.
He used 'Earrup' in the song so you wouldn't realize he said 'asshole'.
The beat cut out and he just said 'Earrup' like he was done.