Definition of pinhead
1 : the head of a pin
2 : something very small or insignificant
3 : a very dull or stupid person : fool
Examples of pinhead in a sentence
The insect is the size of a pinhead.
Her boss is a real pinhead.
First Known Use of pinhead
PINHEAD Defined for English Language Learners
Definition of pinhead for English Language Learners
: the rounded end of a pin
: a stupid or foolish person
Seen and Heard
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