After defeating me, you may legally slap something tied down with a ratchet strap, hook a thumb into your belt loop, and say "Yep, that ain't goin' anywhere."
Final boss is Vin Diesel. You can't beat him without becoming the final boss yourself, but he puts you in a headlock and argues that you're valid until you accept that the highest expression of masculinity is acceptance of all facets of oneself. Afterwards you share a bro hug and he DMs a session of D&D for you along with all the men you defeated along the way as your adventuring party