Phenomenon in which your shit 'corks' itself. When you first start taking a corker, the begining is like a regular poop, but after you've passed an inch or so, the rest squirts -- you've uncorked your bowels.
A corker is a lady who masturbates with a bottle of sparking wine. Part of the thrill is the danger of the cork popping before orgasm and causing damage.
Posher ladies use champagne, the lower classes use Lambrini
Sub division:
If said lady refers to sipping a glass of rose she's corking whilst on the blob