Summer Bikini Beach Buttock

- a pygopag(ous) (from the Greek pygè 'buttock' and pagein 'attached') was a monster in Ancient (Greek) mythology consisting of two bodies joint by common buttocks, now a medical term for 'Siamese' twins thus joint back-to-back
- pygophilia is sexual arousal or excitement caused by seeing, playing with or touching the woman's buttocks; people who have strong attraction to buttocks are called pygophilists.
- pygoscopia means observing someone's rear; pygoscopophobia a pathological fear to be its unwilling object
- pygalgia is soreness in the buttocks, i.e. a pain in the rump.