pinhead

[pin-hed] /ˈpɪnˌhɛd/

noun

the head of a pin.

something very small or insignificant.

Slang. a stupid person; nitwit.

Origin

1655-65; pin + head

Examples from the web for pinhead

Bacteria may be microscopic-three million can fit onto a pinhead-but they are not invisible.
But this seems to me to angelic pinhead density arguments about whether it's a payment to do something or not to do something.
But instead of addressing these issues, the article argues about the best way to count angels on a pinhead.
Never mind how many angels on a pinhead, count how many pinheads.
He uses hand-made copper wheels, the finest of which is only the size of a pinhead, to decorate a piece.
Don't get me wrong--Imus is a pinhead and should be fired for these remarks.
These are pinhead-sized red spots from which tiny blood vessels radiate.
Fibroids can range in size from as small as a pinhead to larger than a melon.
What they know about dogs could be inscribed on a pinhead, with room left over for the swill that inhabits their brains and taste.
The size of a lymph node varies generally from that of a pinhead to a bean.

British Dictionary definitions for pinhead

/ˈpɪnˌhɛd/

noun

the head of a pin

something very small

(informal) a stupid or contemptible person

Word Origin and History for pinhead

also pin-head, "head of a pin," 1660s, from pin (n.) + head (n.). Meaning "person of small intelligence" is from 1896.

Slang definitions & phrases for pinhead

noun

A stupid person (1896+)