a massive inexorable nugget that seems to crush everything in its way
Janus: Brian seems like a really cool guy.

Candice: I don't know, he's a bit of a nuggernaut.
by AveryRed May 16, 2009
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A Nuggernaut is a person that continually smokes Marijuana like a Juggernaut. The word can be used to vilify someone who only comes over to smoke
Ex 1: I smoke weed like a Nuggernaut.

Ex 2: I'm telling you dude, she's a Nuggernaut, she's not actually into you.
by SpaceCowboy8909 August 5, 2023
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