An opportunity to look something up on Google. Googletunities often occur in the context of settling a dispute, or enhancing a conversation with friends. See also wikitunity.
Friend 1 "Today I'm going to plant some tomato seeds"
Friend 2 "Really? I think it's too early in the season. You have to wait until after the last frost"
Friend 1 "When is that in this planting zone?"
Friend 2 "I have no clue. I don't even know what zone we're in. This is googletunity! Let's look it up right now."