A F5 moment is computer gamer talk for a Kodak moment, a moment when a picture explains what the hell just happened better than any words could.

F5 is the key used to take a picture in some Steam games.
Last night on L4D2 Archie made a smiley face on the wall with bullets, it was a real F5 moment.

When Payne pulled off the chainsaw hack and painted the saferoom red with zombie blood it turned int a real F5 moment.
by DWH Going-Postal June 17, 2010
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