More likely, a "John Collins" (strictly speaking "Tom Collins" is based on "Old Tom" gin [which is rare and expensive] - Danny
Rare and expensive indeed, possibly like the young American lady in the bar at the Officers' Club at NAS Cubi Point at Subic Bay who, when asked what she would like, replied in apparent innocence that she would love a John Thomas, adding that she would like it to be "long and strong".....