Top definition
It's a combination of words perfect for the slackers of Gen X and Generation Y, and anyone who just doesn't care anymore, a fusion of the words meh and mañana.

It means to not care much about something right now and you might care about it in a while but you're not committing to that, either, and you'll see how you feel about it later, maybe.
Student: Let's go out boozing with the guys.

Friend: What about your paper due for tomorrow?

Student: It won't take me long to write. Mehnana.
by Jennan33 March 16, 2010
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