1. Avian
fecal matter. In the 18th and 19th centuries, the
North American Guano Company would send ships to south-Pacific islands to harvest the guan, which was used as
fertilizer. (seriously!)
2. Bad news or something unpleasant and unflattering.
1. We used to have to import our <i>guano</i> from Mocronesia, but today we produce so much bullshit in
Washington, that we no longer need
the bird shit!
2. Wendy really dumped a load of <i>guano</i> on me when she said we were
breaking up!