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1.
A female worthy of adding to one's spank bank.
That bitch is so maturbaceous.
by netteach March 14, 2003
 
2.
1. Relating to or having the qualities of the act of masturbation.

2. A misspelling of masturbacious or masturbalicious.
The patient had severe inflammation of the masturbaceous glands brought on by near-constant abuse, and was given an ointment.
by geniusiknowit November 15, 2006
 
3.
adj. one who masturbates frequently
Masturbaceous Jim Tanner ruined his mom's copy of "Good Housekeeping" and consequently had to clean the gutters.
by Duke January 22, 2003