Have people never heard of the Kobe stopper, etc? Putting stopper to the end of a name means that's who you stop. Gobert does not stop himself, cuz that be dumb. Maybe in 15 years when Rudy is getting old, there may be a gobstopper, but for now, the gob cannot be stopped.
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-NBA nicknames 101
You're overthinking it. A lot of NBA players barely know English, so they won't know the difference. The rest are foreign player anyway.
I kid. I kid.