dipstick

Plural: dipsticks

Noun

• A rod used to measure the depth of a liquid, such as oil.
• a graduated rod dipped into a container to indicate the fluid level
• A stick or rod used to measure the depth of a liquid. Often used to check the level at which a liquid in an opaque or inaccessible tank or reservoir stands; gauge.
• An exciseman or supervisor who measures with a dipstick.
• The penis.
• A useless person of inferior intellect; a dipshit.

Verb

• To check (a person) for their understanding of something, as of a lesson, or attitude toward something.
• To measure the level of a fluid using a dipstick.

Examples

• He used his brain as a DIPSTICK to gauge the depth of his Scrabble vocabulary.
• I haven't checked the oil level of my car's motor since I lost the dipstick three months ago.
• If one of the fuel gauges is inoperative (flight is not permitted if both have failed), the tanks have to be dipsticked before and after each fueling to confirm the aircraft's fuel status.
• That referee is a right dipstick.