Hello PsycJames: I'm sorry I don't have the answer to your dilemma.

From my perspective, this is your partner's problem & there may be no way you can get him to stop. You've told him you hate what he's saying & you've asked him to stop. Apparently that has had no impact. So presumably he does not wish to modify his behavior. There's no way I'm aware of you can force him to do so. You only have control over yourself. Perhaps other members, here on PC, will have some helpful suggestions.
I see this is your first post here on PC. So...

to PsychCentral… from the Skeezyks!

May the time you spend here be of benefit.