Masturbate. Or having sex with yourself.
My girl friend left so I am dating myself tonight.
by Avery B September 04, 2005
Can you define these popular missing words?
To make oneself appear to be dated, or older. Commonly interpreted as making yourself seem out of date, old, or aged.
"I know I'm dating myself here, but I was in Three Smile Island."
by Chosen Sloth October 12, 2009