Noun. Someone who says some stupid shit and believes their right after someone calls them out as being a Dumbass, idiot, retard, Etc.
(Sarah): Please join Todd and I as we prey for the people in Ebola.
(John): Are you a idiot? Ebola isn't a country.
(Sarah): Yes it is.
(John): Are you a Fuck Nut?
(John): Are you a idiot? Ebola isn't a country.
(Sarah): Yes it is.
(John): Are you a Fuck Nut?
by Urbanwiz June 8, 2017
Get the Fuck Nutmug. by Freddy January 31, 2003
Get the Fuck Nutsmug. by Store December 28, 2007
Get the fuck nutmug. by fucker October 21, 2003
Get the Fuck Nutsmug. A person Being really up tight and on your case allot.Also used for a different word when pissed off at someone.
Why are you all ways in the way...and do you all ways play video games all the time holy fuck...??(P.M.S.)....yes i do play video games all the time Fuck Nut got a problem with it??
by Chich'n'Chong May 9, 2008
Get the Fuck Nutmug. 
