Top Definition
A dark-haired beauty with an air of mystery that lasts for all of one evening. After that first evening you realize she is fun, a little crazy and ready to party through the wee hours of the morning.

Be careful with an Oihane. They appear easy-going at first, but have a deep energy that can easily burn out an inexperienced man.
Friend 1: Man, that girl seemed chill until we were a few drinks in. I thought I was going to die after that!

Friend 2: Yeah, she was a real Oihane!
by Crash McGee December 12, 2013

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