The Baseball Sex Metaphors refer to a long-standing system of euphemisms used primarily in American culture to describe degrees of physical intimacy. Originating in the post-WWII era, the metaphor equates the four bases of a baseball field with progressive levels of sexual contact, starting with kissing (first base) and ending with intercourse (a home run). In internet culture, these metaphors are often parodied or subverted to highlight how confusing dating labels can be or to introduce 'new' bases involving modern relationship milestones like sharing Netflix passwords or meeting the parents. The meme remains a staple for humorous commentary on the complexities of human relationships and the awkwardness of early dating stages.