Top Definition
When you are with people or in a IB chat, and no one has anything to say.
Also applies to boring events.
I'm in a chat room with Santini and Brian, and they havent said a word in an hour. It's a real mummyfest.

I was at a party recently with some of the most boring people I ever met. What a mummyfest.

by cromano115 April 20, 2009
5 Words related to mummyfest

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