nest egg 

a cache of money saved for a specific purpose (such as an emergency)

They went for the nest egg but forgot where it was.

nest egg by The Return of Light Joker October 7, 2009

egg in a nest 

The preferred hairstyle of bald men. Hair is present around the sides and back of the head, but the top is completely smooth. From behind, it closely resembles an egg in a nest.

Your head looks like an egg in a nest.

egg in a nest by menfromearth December 24, 2003

Egg In The Nest 

A minor variation to egg in a nest, where an older man whose hair is thinning has a bald (often shiny) slaphead part on the top with a band of hair present around the sides.

The hair is the nest and the skin of the bald head is the egg.

"Mate, you have an egg in the nest"
"Haha, my dad has an egg in the nest"
"I suppose I am just a bit of an egg-in-the-nester."

Egg In The Nest by Charlie Deacon July 7, 2008

egg in a nest 

After a man has been in very cold conditions or if he just has a small penis his penis looks likes an egg in a nest.

I've just been in the sea and it was really cold, my cock looks like an egg in a nest!

egg in a nest by MasterOfWisdom May 20, 2011

Nestegg 

When a man's penis is so small it doesn't extend farther then his pubic hair.

Dude, that guy's junk looks like a nestegg.

Nestegg by Thedung August 26, 2012