1 definition by bluefish1
Menc is a term used to directly define a person who has a mental disability such as downs syndrome or is mentally inept in some way. It can be used in a jovial sense, for example toward a perfectly normal person who is acting strangely, carelessly or just fooling around. Possible origins of the word Menc include Mencap, the UK based charity which promotes Mencs in an attempt to integrate them into society, whether we like it or not.
by bluefish1 October 22, 2008