A stupid person. Literally a wasted load of semen. As if to say that they shouldn't have been born. That they should have been wiped away, thrown into the garbage, or washed down the shower drain.
The type of person who creates an UrbanDictionary definition specifically to insult a specific person or group, rather than post an actual definition for the word.
Some fuckwad thought it would be funny to waste a definition for this word to spew an ad hominem about the book Liberal Fascism? Why, he's an even bigger fuckwad than the guy who posted a definition of Moonbat that insulted conservatives.
descriptive or derogatory term alleging equivalence to a mass of jism or spunk spent in an act of intercourse; similar to jerkwad, except production is masturbatory.
Someone who spuriously slanders an entire group of people using specious faux-scholarly arguments because he thinks that politics doesn't have any real world meaning and is all a big game of who gets to call the other side a poopyhead the most. Counts double if said fuckwaddery gets reviewed in the New York Times because the fuckwad "author" has a famousmommy.
"The white male is the Jew of Liberal Fascism" - Liberal Fascism, by fuckwad Jonah Goldberg