Ron Jeremy Calls B.S. On Ric Flair: 10K Chicks Is Impossible

Porn legend Ron Jeremy says there's NO WAY Ric Flair banged more than 10,000 chicks ... telling TMZ Sports, in his opinion, it just ain't possible. Jeremy knows a little something about ... um, puttin' in work. He's been named #1 on AVN's 50 Top…