The intense mission of doing a female in her rear end and then pulling out, placing some ecstacy on her asshole, and then pushing it in with your penis during reinsurtion. Mystery plug!
Robert pulled a Myster-E-Plug on his girlfriend during anal sex and minutes later laughed as she tried to figure out why she felt as good as she did!
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.