1 definition by tabularasa

Top Definition
Used to describe a period in a non-platonic relationship wherein the frequency and intensity of sexual activity have stopped rising.
How are things between you and that boytoy of yours?

Hmm…it's on cruise control. I think our relationship is turning plateaunic.
#platonic #plateau #sexual relationship #platonic relationship #sex
by tabularasa December 03, 2008
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