When Gmail is unable to accomplish a simple task such as delivering an email or chat, or loading your calendar or documents.
"I've been trying to attach this document for a solid 10 minutes. Total Gfail".
by TF2010 January 25, 2011
2 more definitions
When Google doesn't deliver your messages
You never got the party invite? I sent out a calendar update.
by DrWex August 14, 2008
The great gmail blackout of February 24, 2009.
I can't log into my gmail! Oh man this is gfail all over again!
by Rabadop February 24, 2009