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2.
A subtard is like a leotard, but you wear it on your head.

Can also be used as an adjective to mean above-average.
"Will, we're gonna be so late. Just grab your subtard and let's go!"

"Wow, that was a real subtard performace, Mary. Way to go!"
by Mary Barry October 01, 2009
 
1.
Subtard {Adjective} or {Verb}

Subtard is someone who works at Subway the food chain who is often regarded as retarded.
OMG maddie why are you bringing me the bucket from under the sink, OMG you are such a subtard
by nobodybutmeee September 01, 2013