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a foolish, stupid, or contemptible person
American
What is the origin of the term "dipstick" and how is it used?
"Dipstick" is an American slang insult that appeared in the mid-20th century, originally referring to the simple rod used to measure oil in a car engine. The word was metaphorically applied to people to suggest they are simple-minded, useless, or lacking common sense—like a stick whose only function is basic measurement. It became popular in casual, often humorous speech, especially in the U.S., to mock someone's foolishness or incompetence. The term is mildly derogatory, usually playful rather than deeply offensive, but clearly insulting when aimed at a person.
a tool for measuring the level of oil in an engine
What is a "dipstick"?
A dipstick is a tool used to measure the level of oil in a vehicle's engine. It is a long, thin metal rod that is inserted into a tube in the engine. The dipstick has markings to indicate the oil level. To use it, the dipstick is pulled out, wiped clean, put back in the tube, and taken out again to see where the oil marks. Checking the oil level regularly with a dipstick is important to ensure the engine has enough oil to run properly and avoid damage.
