1 definition by Dirty Dodson
A sexual act or favor when one shaves off his/her or their partner's pubic hair, stuffs the pubes into the mouth of their partner and then proceeds to defecate on top of the pubes...thus simulating a bird or if you will, a "turds" nest.
So my boyfriend Miles loves it when I will up his mouth by performing a birds nest with him and his mother DeeDee.
by Dirty Dodson March 3, 2008