Hehe, hadnt noticed this thread before. To see sexual references in those island names, well I guess you can only have the fun you make yourself. Since we are all at some point focused on sex and anything that might refer to it, it is rather easy to have anything turn out to be sexual references, as the thread starter clearly showed. "Elaine, come over here for a second."... such an obvious sexual reference, he wants her to... you probably get my point. Its hard to find anything that cannot be put in a sexual context somehow. Fish, spoon, mermaids (duh, what was the tale about them to begin with?), beaches...
Isle of Ewe, yes it makes some references. Uncommon to Monkey Island? Well, Largo did happen to have a bra in his laundry and I guess you must have missed the part trying to "pick up" a certain female captain in MI2.
Sexual references are supposed to be in adventure games. Even noticing some of those sexual reference and others doesnt, just proves they are hidden. Not something a preteen person would notice first time seeing it. And just a fair warning... dont play any Leisure suit Larry games