first base - Wiktionary, the free dictionary

From Wiktionary, the free dictionary

first base (countable and uncountable, plural first bases)

  1. (baseball) The base after home plate in a counter-clockwise path around a baseball infield.
  2. (singular only, by extension) Completion of the first phase of an activity.
  3. (singular only, US, colloquial) Kissing, regarded as the first phase of a sexual relationship.

    I got to first base with Danny, and hope to get him naked this weekend.

  4. (blackjack) The betting spot located immediately to the left of the dealer, which is first to receive cards and first to act.

baseball: base after home plate