wouldn't touch him with yours -> δεν θα πήγαινα μαζί του που να ήταν ο τελευταίος άντρας στον κόσμο, δεν θα πήγαινα μαζί του με τίποτα
to not find (someone) sexually attractive; to not have sex with someone.
Mostly used in the form "I wouldn't touch him with yours" or "I wouldn't touch her with yours".
https://en.wiktionary.org/wiki/wouldn't_touch_with_yours