To punch a girl in the kidneeys while having anal sex with her. this often makes her bleed out of her mouth. The Frogger is often used in fucked up gothic/S&M porno.
"I was Bangin' this girl last night and i gave her The Frogger. She charged me with sexual assault and now my friends call me Kobe :("
Giving a girl kidney punches while doing her doggystyle
"Yo man I was with this kinky girl last night and she wanted me to give her the frogger"