I think you found the bowl to Leroy's bong.
Yeah, if that white part was metal, you could totally put a sink faucet mesh insert in there and use that to make a bong.
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I think you found the bowl to Leroy's bong.
It's either a muffler bearing or the fill cap for the blinker fluid.
Looks like a ********!
Can you pull them apart and post a photo of the back side of our suspected bump stop?
It also looks like a rubber bumper from a factory tailgate extender.