Talky Talky Donkey 

A 'cupcaker'; it is defined as a person who squanders off into an isolated decibel (usually a bedroom) away from his present company/bros in order to talk, or "cupcake" with a 'non-slut' girl. No action/possible intent of sleeping with this girl but just to inspire relations. An extension of a cupcake.

Talky Talky Donkey: A bro goes off into the garage for a large amount of the time just to stay on the phone and giggle to himself of a work in progress (flirting) while leaving the party, celebration, or group of friends to themselves.

It is as a donkey receding to his barn to chew alone.

Talky Talky Donkey by JGuiz November 23, 2010

talk the hind legs off a donkey 

could talk for hours

My grandma could talk the hind legs off a donkey

talk the hind legs off a donkey by Michael D. R. February 6, 2007