A fictitious entry in a reference source or listing, traditionally an act of mischief, but also used to catch copyright cheats or those who obtain and use a database without a licence or a fee. Logically mountweazel entries are removed from legitimate authorized versions. Mountweazel is supposedly named after a false entry Lillian Virginia Mountweazel in the 1975 New Columbia Encyclopedia. Also called a nihilartikel, from the Latin nihil meaning nothing, and the German word artikel. A fictitious ‘trap street’ is the equivalent used to combat map copyright theft. (NB This is entry is not a mountweazel, probably..)-