Noun- an object, person, or place that is less than it seems.
Adjective- describing a person place or thing that is less than advertised.
Derived from former-planet-that-couldn't, Pluto. Celestial objects of Pluto's mass are now referred to as plutoids.
"That Jeff... why does he always act like he's a hot shot?"
"Yeah, he's a real plutard."
"Jeff's Saturn that was allegedly a Porsche is plutarded."