To chop off, cut, slice, etc. someones head.
King Henry VIII beheaded two of his six wives
by Joe Riekhof May 9, 2007
The act of separating the head of a person from their body. Usually done with a knife, axe, sword, etc.
Teenager 1:"If I ever see that bully again I think I will behead her with a knife from the school cafeteria!"
Teenager 2: "Whoa you can't do that, dude!"
by dj crackpot October 26, 2017
overwhelmed by or judgmentally impaired by a rush of particularly potent emotion, generally due to substance abuse.
Susan thought she had it together but her friends realized she was fairly beheaded when she could not properly order a sundae at McDonalds.

John did not realize he was beheaded until he was slapped by each girl at the party.
by PitFaced June 1, 2012
When someone cuts off someone else head. This can happen a number of ways. Decapitation is another word for it.
Mary Queen of Scotts had a beheading last week.
by Carter335783 February 1, 2020
A little bite on the nob, which, when penis is hard, a mark should be visible, this mark resembles a medieval beheading that has had to be repeated, giving it a to sectioned look (eg.--)
Man, yesterday this chick Lisa, she bitt down on my boy's cock, he said, it look like a beheading (aka beknobing), and it hurt like one too..
by P.M 19.95 November 11, 2009
A grammatically incorrect, ghetto-speak method of referring to a place where one is going currently.
Tyrone said, to his fellow thug homeboys, "I beheading to the projects, yo!"
by Deranged Sanity September 6, 2014