Old slang term for pinstripers, practitioners of the old art of pinstriping.

Pinstriping is most often practiced and painted upon hot rods and motorcycles, Pinheads however paint pinstripes on anything they think will look cool with pinstripes, such as Zippo Lighters, coffee cans, old whiskey bottles, and the namesake piece of art, bowling pins (Cool huh?)

Pinheads often gather together and participate in Panel Jams, where Pinheads bring their stripe box and some Plexiglas to pinstripe works of art and trade with their fellow stripers. One of the more well known ones takes place in the middle of March called the Ratfink Reunion, which is located in Manti, UT every year.

Some of the more well known Pinheads include (but are not limited to!) Herb "The Line Doctor" Martinez (arguably the most well known pinhead), Tommy "The Greek" Hrones, Dean Jeffries, Steve Kafka, Von Dutch, Hot Rod, Morkel Snorkel, Tommy "Itchy" Otis, Peter "Preacher" McDermott, Bob Spena (Apprentice to Von Dutch), John Kosmoski (Founder of House of Kolor), Craig Frasier (Inventor of the Slash Stripe), Enamel, Bobbo Dunn (Innovator of the curly type pinstriping technique), Willis Dormer, Jimmy C., Coop, and the Legendary Beam Brothers (Innovators of the Fresno Stripe).

It is unknown who coined the term, though it is agreed that it first appeared in the mid 70's.
Hey guys, did you see all those pinheads at the rod show last night?

Hey Jason, you're a pinhead right? They're having a panel jam downtown at the shop tonight.
by Doubleback Pinstriping February 5, 2012
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A person who smokes weed but only hits a dab pen. This is usually the result of strict parenting.
Yo does a Olivia smoke gas?

Yes but also no, she’s a Pinhead I’m trying to get her on the good good.
by Niyninski January 3, 2021
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A pinhead is a persons penis which is thinner then their middle finger and longer then their neck.
I was with him last night, but i rejected him because he has a Pinhead.
by Too many laughs December 14, 2010
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zoe is soooo lovely but she has pinhead, but you gotttta LOVE her
by spadgearoo October 29, 2005
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A person or persons who's head is of abnormally skinny in size like the shape of a pin.
by Eugene October 23, 2003
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Basically a retarded and/or mentally handicapped person.
That kid is a fucking pinhead, he stuck his dick in a pencil sharpener
by Stumpcrash November 29, 2018
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Someone who often lives in a stock cupboard with horrible fashion sense and big glasses. Usually small with even smaller head and scary glasses. Extremely passionate about pink sweaters and checkered, grey skirts.
"I've got Pinhead this afternoon"
by patrick stewart January 24, 2004
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