During sexual intercourse, the point at where a man is fully up to the hilt and his bollocks (or taters - short for 'potatos') are touching the labia.
I was with your mum last night. My god, I was taters deep and still not touching the sides. If I hadn't have strapped a plank to my arse, I would have fallen in.
by The Strut October 12, 2004
Get the taters deepmug.