The stimulation of the penis (or testicles) using the mouth.
Specifically, the insertion of the penis (or similar object) during sexual intercourse.
The act of penetrating something.
The act of penetrating a given situation with the mind or faculties; perception, discernment.
A number or fraction that represents how many cards/decks will be dealt before shuffling, in contrast to the total number of cards/decks in play.
The proportion of the target audience who buy the advertised product or service.