A oneginaman is a man whom has only been with one woman and worships her vagina because he cannot summon the energy to find another. He may also be seen as a type of AFC (Average Frustrated Chump). People like this will often remain in this state for a long time because of unconscious slavery. The solution? Go and fuck as many women as it takes for you to see this woman as what she really is. Just another fish in the sea.