a moronic, obnoxious jerk, (male or female) who is not worthy enough of being a full fuck-tard, yet still is a stupid fuck. just as half-pint is only half of a pint, a fucknugget is only partially human.; also, anyone who is only worth a nugget of your time.
"wow john, he's not even a full fledged asshole, t-bone's only a fuck nugget"
by Scaith November 14, 2007
Slang term for a human infant.
I've changed that little fucknugget's shitty diapers 12 times today.
by Handol July 08, 2014
General insult, sounds funny but means nothing.
Shut up you Fuck Nugget!
by FriendlyNeighbourhoodVigilante October 15, 2013
A hardened ball of male excretion produced usually a few hours after an improper ejaculation, one usually needs to see a physician after producing a fuck-nugget, as it is extremely difficult to expell from the penis.
Person 1: "Did you hear about John? He claims to have gotten a fucknugget!"
Person 2: "Oh my god, I hope he's okay!"
by mustang-wolf December 02, 2012
fucknuggets is a word you use to give a quantity. In short, fucknuggets is a lot. Like..A LOT. An ungodly amount that cannot ever truly be defined.
Athena: I am sicker than fucknuggets!
James: Are you sure of these accusations? Fucknuggets is not a subject to be trifled with!
Athena: Yes. My throat is almost shut and no amount of fucknuggets shall open it.
James: Sad day. Very, very sad day.
by Athena.M.Tonks November 10, 2011
a phrase used when something bad happens or you realized something bad has happened
Ex: Aww fuck-nuggets, I got a F on my test

Ex2: Fuck-nuggets. thats the cops behind me
by Lynden P. January 13, 2009
A really retarded idiot with no friends.
"Hunter is such a Fucknugget!"
by Odawg:P October 29, 2014

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