Nig Back 

To recline a car seat back past 112.5°. The magnitude of the Nig factor is equal to (nig angle/360)2pi×Radius.

My head is touching the headliner. I have to Nig Back to a Nig factor of 5 to be comfortable.

Nig Back by BeefCake2020 April 23, 2019

nigback 

A person that is half mexican and half black.

As John was walking home from school with his mexican mom and negro dad, the nigdus, called him a nigback.

nigback by douglas quaid May 13, 2005