A more senior, and generally larger scale version of a camels toe. Looks more like piano wire garotting an ardvarks rear. More prevalent in older ladies that "were once hot, but now are not"
Your wife needs to get a new swimsuit mate, that one shes got on may have fit her 20 years ago but now it just shows her "Mammoths hoof" its so tight!!! Its not a good look.......