crotch-kicker
A vengeful abusive person: one who uses threats to manipulate people and seeks to exact vengeance on anyone who opposes them by the most ruthless and violent means they can think of, such as kicking them in the crotch. The abuse may be a literal kick in the crotch, or may be a metaphor for hurting the person through other means.
"I told him I was leaving him. He kicked me in the crotch with steel-toed construction boots. Since that day, I call anyone bent on revenge a 'crotch-kicker.'"
"The Tycoon has a history of legal intimidation. He has been involved in 3,500 lawsuits over the years. He is a lawsuit-obsessed crotch-kicker."
"The Tycoon has a history of legal intimidation. He has been involved in 3,500 lawsuits over the years. He is a lawsuit-obsessed crotch-kicker."
crotch-kicker
a person who kicks a person (or people) in the crotch (yeah, that area)
Person#1: OMG did you see _______ get kicked in the crotch?
Person#2: Yeah, what a crotch-kicker.
Person#2: Yeah, what a crotch-kicker.