What is 5th base?

Fifth base is a concept that arose in pop culture, particularly online, as a hyperbolic extension of baseball terminology related to romantic or sexual encounters. It's not an official baseball term, and its meaning is purely metaphorical.

  • Meaning: Generally, "fifth base" refers to a sexual act, usually intercourse. It's used humorously to exaggerate or euphemize the progression of intimacy between two people.

  • Origin: The origin is uncertain, but it plays off the existing baseball metaphor for romantic progression:

    • First base: Kissing
    • Second base: Touching above the waist
    • Third base: Touching below the waist
    • Home run: Sexual intercourse
  • Usage: The term is most often used in casual conversation or online humor. It's considered slang.