Nansest 

A term which means for someone to take part in sexual activity with their nan.

Pronounced nan-sest
Incest with your nan

You enjoy nansest

Nansest by BBCINMyGob November 2, 2018

Nansistance 

Any help given by your mother or father's mother.

'I was really struggling with my sewing but Margaret gave me some excellent Nansistance!'

Nansistance by Torakvf44 August 6, 2018