Often shortened to "jengo" or "jengos." Can be used in combination with other describing words that still allow for it to not be obvious that you are talking about a woman within earshot.
While in a large group, simply yell "Jengofett!" to alert nearby friends that somethings of interest are near or nearing.
While near a hippy chick with large breasts: "So I was thinking about bohemi-jengo the other day while skeet shooting some old Abba records." This will alert your friend that a hippy chick with some sweet gong donglers is around.
While near a fat girl with monstrous breasts: "Jabba-jengo is an interesting subject of study in today's economic climate." Be aware that not everyone will be thankful for the chance to see some below the belt tommyknockers.