An acronym for "What An Age We Live In", a form of exclamation at the state of society or technology, and its remarkable advancements.

A true statement of wonder at the world we live in, WAAWLI.
"My mom just learned how to text... WAAWLI!"

"I just used my cell phone as a boarding pass on this airplane, WAAWLI!"

"My car's just gps just told me off, WAAWLI."
by waawli August 24, 2010
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