Top Definition
(physics) the tendency of a body to want to continue to drink beers after the first one, unless acted upon by an external force.
her: why are you drinking ANOTHER beer, you're already hammered!?
him: don't question my beernertia. it's just how the universe works.

pick up an extra case of beer at the store so we don't have to break our beernertia.
by ThusSpakeWill November 06, 2009
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