What does break her in half mean?

break her in half meaning in Urban Dictionary

Typically combined with the preceeding pronoun "her", a metaphor made use of when having sex/nailing/fucking a girl (generally called a slut, hoe or bitch) therefore vigorously that one could visualize splitting the girl in half within the center (or up the back, correspondingly). Often referring to a slim high woman, or a cute, tiny petite one. Often used in the degrading sense by a male among his colleagues to increase his esteem.