The act of a male engaging in vigorous vaginal intercourse with a female while she is pregnant, specifically in the earlier months of her term when the fetus resembles a medium sized tomato or so does the head of it.
“Girl you wanna go watch a ball game with me?”
“What do you want to watch on TV dear?”
“Nah, I’m gonna play some tomato baseball with little kiddo in there, take your pants off”