Hulk Hogan just can't seem to identify his female co-star in the sex tape that just surfaced -- telling TMZ, he banged so many chicks after he left his ex-wife ... the woman could be one of MANY possible conquests.
Hulk called in to TMZ Live moments ago ... claiming he went on a 4-month alcohol-fueled lady-screwing bender between the time when he left his ex-wife Linda ... and met his current wife Jennifer.
Hulk tells us, "During that time, I don't even remember people's names, much less girls."
Hulk says he hasn't had sex with another woman since meeting Jennifer 5 years ago -- so the tape has to be at least 5 years old.
Hulk still has no idea who's selling the tape or how that person acquired it -- but Hulk's lawyer says, "If anyone goes forward with this thing, we're gonna find 'em and we're gonna prosecute."