Top Definition
A cute boy sometimes called thomas but this is not necessary for someone to be a massy. Can fit with random noises and words assosiated with cuteness
'awwww what a lovely massy'
'iccle bitsy baby massy oooohh i just wanna eat him'
by urbandictionarylover May 24, 2008
Short for mastrubate.
Guy - Have you heard Tim Massys him self while we're not looking.
by The Koaladude September 11, 2005

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