Macro Golf [mak-roh gawlf] [] noun -
  1. the game of miniature golf scaled up to the same size as traditional golf (e.g. life sized windmills and hundred foot clown heads would dot the course).
Mahaloha [mah-ha-loh-hah] [] noun -
  1. a Hawaiian greeting that both welcomes a visitor and thanks him/her for his presence.
Mandex [man-deks] [] noun -
  1. a stretchy synthetic fiber used primarily in men’s athletic clothing.
Mandle [man-dl] [] noun -
  1. a candle for a man. {source}
Manyak [man-YAK] [] noun -
  1. the stub end of a sliced food product, typically a bread or a casserole. {see also bananus}
  2. a person who eats said stub, usually by choice. {source jon may’s great grandmother, who used the term pejoratively and is suspected of secretly coveting the piece for herself. The word may be a Yiddish transliteration of the English word ‘maniac’.}
Michael Bayesian Filters [mahy-kuhl bey-zee-uhn fil-terz] [] noun -
  1. a series of computer based filters, trained over time through an artificial intelligence process, which allow computer controlled motion picture cameras to automatically record high budget action sequences in the style of producer/director Michael Bay.
  2. a method of filtering email spam that relies on producer/director Michael Bay to manually read and sort all incoming messages.