The physical embodiment of everything you have ever dreamed of in a sexual partner realized in someone you meet, only to discover they have shit for brains and nothing to contribute to any remotely normal, intelligent conversation....or any conversation at all for that matter. I.E hot and stupid.
The character Kelso from That 70's Show. At least 65 percent of models. "I met this total hottie at Peachtree Tavern the other night, unfortunately, a total hush baby. But maybe if I gag him, we can still BONE."