when any liquid is pour out of the anus. This act usually occurs after an intense sex session causing a gape.
That girl is the queen of anal floods.
When you give a girl an enema and force her to hold it in before you perform anal sex. This causes contractions that can be pleasurable to the man.
It is advisable to have her use a dueche first as this may have disastrous results if she is not in complete control of herself.
Dude, I gave her an anal flood before I put it in and I could feel her bear down on me the whole time.