An extra-large lollipop.
A penis.
A useless person of inferior intellect; a dipshit.
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.
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.