Top Definition
Although the nuts portion of the word would suggest it only applies to male, the term can be applied to either sex.

Adjective: One who exhibits a false sense of entitlement and lords it over others in social settings.
1. "That guy over there is acting all smugnuts because his dad owns a dealership."

2. "She acts all smugnuts because she's fucking the drummer from that band."
by Furrymike February 03, 2010

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