Describes the sticky, pungent taste in your mouth that follows a long night of drinking after which you take home the nastiest, dirtiest, filthfest
of a woman and proceed to engage in such things as sixty-nines and deep tongue splunking
The only known cure for trout mouth is long oral wash with white vinegar (do NOT try toothpaste, the taste of trout and mint will surly cause vomiting) and a REALLY long shower. Assuming of course that you've already gone home or -if the act took place at your house- ejected the culprit from your home.
"A good friend would NOT have let me take THAT home. I woke up with the worst case of trout mouth today. You evil son-of-a-bitch."