2 definition by Toumbraider99

Top Definition

When a males penis us at its largest, from an having an erection it is called a full neilson

It was aukward because I had a full neilson when I stood up.

by Toumbraider99 June 28, 2018

When someone has a half boner

She was hot, but she only gave me a half Neilson

by Toumbraider99 June 28, 2018