Crash Victim to Nick Hogan -- I’m Suing Your Ass!!

Hulk Hogan’s son is being sued by a woman who claims the reality star messed her up pretty bad in a 2009 freeway crash … and now she wants Nick to fork over a ton of cash to make things right.

According to court docs obtained by TMZ, the woman -- Marcela Posada -- claims she suffered pretty significant injuries to her body and her ride when the two collided on an LA freeway while Nick was driving home from a charity event.

As TMZ first reported, Posada did not report any injuries when police arrived to the crash scene -- but now, it seems she's singing a different tune.

According to the docs, Posada is demanding in excess of $25,000.