knothead 

Someone who just doesn't learn from sore experience, whose knotty head speaks to repeated thumpings for trying to do something they were told not to do.

My sack-o-shit father called us all knotheads when we tried to raid the cookie jar.

knothead by Siva333 May 2, 2015

koothead 

an insult similar to peebrain
usually preceded by dummy and idot

abbeighyie: you fool. you clown. you idot.
kulsoom: okay peebrain
abby: okay koothead

koothead by hiraffe January 28, 2021

knobhead 

Used to refer to or insult a foolish person.

See also: dickhead

"He's such a knobhead."

"You absolute knobhead."

knobhead by Kelly December 22, 2004

uncle knobhead 

that 1 distant uncle who you only see at big family gatherings who nobody particularly likes and who proceeds to annoy everyone.

"oh jesus here comes uncle knobhead, let's ignore him"

uncle knobhead by GF September 19, 2005

knot head

(A) A person who has trouble thinking in a logical progression. this is usually caused by a profound amount of circular reasoning tying their brain into a knot.
(B) A dumb ass

That Knot Head Smerman is trying to figure out how to use the urinal again. last time he pissed his pants before he figured it out.

knot head by Bo Snagley November 10, 2008

Fundamental Knobhead 

Term created by Joe Lycett.
Used to describe an absolute idiot. Someone who is too bad to just use the word knobhead.

Larry: That bloke over there is a fundamental knobhead!

Fundamental Knobhead by back_from_whence June 26, 2018

knobhead 

Like dickhead. Except with a knob.

That knobhead over there is an awful knobhead.

knobhead by Will May 12, 2003