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To pull out of an engagement, usually at the last minute, after initiating the event in the first place. To renege on a social agreement.
Steve got up a kayaking trip for today, but he called late last night and whiteheaded us.
by jfl5 November 19, 2011
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Feb 27 Word of the Day
From STEM, an abbreviation short for "Science, Technology, Engineering and Mathematics", a STEMlord is a pejorative term for a particular kind of person who has studied in these areas at university or works in these fields who holds a pretentious, condescending attitude to anyone who has studied in any other fields, particularly the Arts and Humanities. They typically believe themselves to be more "intelligent" and "rational", while generally remaining incredibly ignorant outside of their areas of expertise and having the charisma of a rotting pig's backside.
"Ugh, I wish Reddit wasn't full of STEMlords the entire goddamn time."
by nopeidontneedanameok October 15, 2015
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When someone stands next to you while your picture is taken, then uses it as an implied endorsement in their political campaign. Can also be done with business cards, articles of clothing, your car and pets.

A phrase made popular in the 2020 Kootenai County, Idaho Sheriff election.
Be careful of even appearing in the same photo as him, he will Whitehead you on his Facebook page.
"WTF, why did you Whitehead me?" "Well I thought you was endorsin' me"
by Puffythecop September 28, 2019
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A pimple or zit that is full of puss, white and ready to pop!
Barb's whitehead was so ripe and perfect, when she popped it, puss went all over the mirror! Awesome!
by BiancaSr March 20, 2007
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An old person. Characterized by their white hair and lack of driving skills.
Driver: It sure is a beutiful day.

Passenger: Holy shit, watch out for that whitehead!!

Driver: -swerves to avoid head-on collision- Thanks man. That old fucker almost killed us.
by RacialSupremecy March 11, 2006
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To get head from an old lady (Refrencing her white/grey hair.)
Brandon totally got some whitehead last night dude. He sure loves him some grannies.
by akrippler August 13, 2009
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n 1. A permanent white mark, generally upon one's head, that indicates the status of "leader of ritual sacrifices" in a literary cult.

v 2. To create the white mark refered to in definition 1.

v 3. To inflict a meaningless white mark upon another's head.

v 4. To beat someone over the head with a coconut until their head turns white.
1. I thought that Sheila was a normal girl, until I spotted the whitehead she kept covered under her bandana.

2. As Silvia cast the sacrificial goat into the fiery volcano, the chief of the Hawthorne Literary Cult whiteheaded her.

3. Badfield, the most rowdy child in Mrs. Lit's first grade class, was known for rubbing chalk dust over his hands, and then whiteheading other children.

4. Sweety and Tweety became so sick of each other after being stuck on a deserted island together for seventy-three years that they whiteheaded each other, and were jubilant all the while.
by mysterychef November 14, 2006
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