Out With the Old, In With the New
The name Maurice, by the way, has its “r” trilled (as in the Spanish word “burro”), which is followed immediately by the infamous wolf whistle played on a slide guitar. There’s a theory with fans that Miller was actually paying tribute – or bidding farewell – to his older persona as he abandoned trippy sounds for a new melodic style.
Source: Reddit
The song itself gives off the vibe that not much effort was put into it. Miller is aware of just how goofy it sounds. After all, you don’t add wolf-whistle guitar slurs after singing the word “Maurice” if you want to come off seriously.