Top definition
Someone whose sexuality and/or fetishes fluctuate rapidly, changing seemingly at random, and aren't fixed unless directly observed.

A bastardized version of the Uncertainty Principle and Observer Effect of Quantum Mechanics, Applied to ones Sexuality.
That bitch was into BDSM and guys one minute, and hated them the next. Whats up with that? She is totally Quantumsexual.
by 090876510bna November 02, 2014
Get the mug
Get a Quantumsexual mug for your father Trump.