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1.
nail-ism (ney-liz-uhm) n: a philosophical attitude associated with nailing, hammering, or at times screwing; carpentry. to believe in having sex a lot, although not necessarily with different people. nymphomania.
"Instead of buying particleboard furniture from Sweden we should just practice Nailism"

or

"What would a Nailist say about a ménage à trois?"
"Nailism allows two-at-a-time"
by Manny Black December 02, 2009
 
2.
nail-ism (ney-liz-uhm) n: a philosophical attitude associated with nailing. to believe in having sex a lot, although not necessarily with different people. nymphomania.
"how long have you been a nailist?"
"since birth, but i never heard it put in words until nailism entered my life"
by Manny Black November 20, 2009