When one has drank copious amounts of alcohol and is unable to cum through sexual intercourse.
Try as hard as she might, Lily could not get Nick to climax. He was molly bagging her all night.
When one reaches the pinnacle of sexual prowess by drinking just enough alcohol to dull the lubido enough to prevent climaxing but not too much such that an erection is unachievable.
Try as hard as she might, Lily was unable to get Nick to give her a cream pie. Nick was molly bagging her all night.