Both insane and unclean.
Seriously, she's insanitary! Stay away from that one! She'll kill you or worse.
by Phil the Intoxicator March 31, 2009
1 more definition
Something that is insanely unsanitary.
Unless you want to catch some crazy rash, do not use Bobby's bathroom; it is insanitary!
by MzzG July 16, 2010