Top Definition
A reference to to people who pretend they're Alex Trebek, host of Jeopardy, but are actually total retards. Synonymous with dumbass and dumb-ass but generally reserved for nerds pretending to be authorities on particular topics.
That dumbalex spent 10 minutes trying to convince me that global warming is a liberal hoax.
by JerseyRocks January 09, 2009
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