Liz Dickson

No wonder this chick's so teed off -- TMZ has obtained video of model Liz Dickson taking that golf club to her ass at a Playboy event ... and it's gnarly as hell. TMZ broke the story ... Dickson is suing Playboy for more than $500,000, claiming she was badly injured at a Playboy golf tournament in…

Playboy, hot models, big hard ... clubs, and NOT Oscar winner Kevin Kline ... but a comedian named Kevin Klein -- all the ingredients for a hardcore golf tournament! Unless of course ... you're the hottie whose ass was used as a tee box, and battered in the process.