The surname Henderson is of Scottish origin and means "son of Henry". The name is derived from the Scots Gaelic clan MacEanruig of Glencoe which was later anglified to Henderson and McKendrick. Other areas of Scotland that the name made an early appearance were Caithness in the far north of Scotland in the 15th century, where Henry Gunn fell out with other members of the clan Gunn and adopted the name Henderson. Towards the end of the 16th century the name appears around Dumfries in the Scottish borders when the family are accused of being Border Reivers. The name was unknown in England prior to the 17th century and is first mentioned in a marriage document between one of the Borders Hendersons and the daughter of a Carlisle merchant at Hexham

also one of the best surnames ever!
name. Mr Henderson
by ace_maan May 19, 2009
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The sexual act involving a tarp and anal beads. Anal beads in while the guy is getting a blow job, and right when he cums the anal beads are removed, and his bowels empty all over the tarp. Then the partner rolls around in the feces and commences to other sexual acts.
Person 1: You ready? Gonna put the tarp down.
Person 2: What do we need a tarp for?
Person 1: the henderson, now put these anal beads in
by almosttooboss May 16, 2011
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A Henderson is someone that possesses insane amounts of car knowledge and uses it to effectively to drop knowledge-bombs during civil conversations about cars.
Friend 1: "Wow look at those two turbos in that Subaru!"

Friend 2: "Those are hella horns, not turbos, you moron! Wow man..."
Friend 3: "Wow man, you just got Henderson'd!"
by Ghalby February 15, 2017
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A person who spends ages preaching about something but abandons the cause as soon as it becomes convenient for them to do so. Like being outwardly pro-LGBT for a decade then taking a massive pay cheque to work in Saudi Arabia.
“Is that an iPhone? I thought you were boycotting Apple because of their dreadful factory conditions?”

“I was, but the new iPhone has an extra camera, AND it comes in my favourite colour.”

“You are an absolute Henderson.”
by Jeff Vader 1990 July 30, 2023
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The act of putting one's testicle into the anus of another. Usually done in multiple attempts.
Doug pulled a henderson on Rebbecca and now can no longer have children.
by nuggetlover February 17, 2009
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1. the act of falling wildly in love with a female and professing this to her passionately, and losing interest within a week.

other forms: henderson-ed, henderson-ing, henderson-able
"i got totally henderson-ed last weekend man, i so did not even see it coming!" or "he definately henderson-ed her to the extreme, bro."
by linnea rosie October 4, 2007
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A two-handed masturbation technique performed whilst viewing a poor quality video of a naked, jumproping woman. A popular variation involves the concurrent playing of the theme song for Rocky (the original).
With only a few minutes before the Raiders game, Harley had just enough time to complete a Henderson.
by Scamp Bellcott October 20, 2007
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