Top Definition
The act of performing incest with a father, either yours or a friends. This could include butt-sex, blowjobs, handjobs, and fingering, fisting, and eating out their assholes.
That guys so nidrosexual he ate out Timmys dads asshole.

Bobs such a nidrosexual he fisted Nialls dad and Hyssams dad at the same time.
by Jay Zeddy Allerrice February 09, 2009
6 Words related to Nidrosexual

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