Physically located in Katoomba; found in Seb Chan’s photo stream.

From AskMeFi: “You know, like gaggle of geese, murder of crows, school of fish, all that. Does a group of ninjas have some sort of descriptor? We’re talking many people in halloween costumes, how to address them together. The { blank }.”

Aside from the inevitable brush to Ask a Ninja, answers included:

• sir, sir, sir, and sir
• one ninja, many ninjim. And the collective is a flipout of ninjim
• a hedge of ninjas. “We are a hedge. Please move along”
• a stealth of ninja
• a cloudshadow of ninja
• a wraith of ninjas
• a hood of ninjas
• a murder of ninjas
• a diminishing effectuality of ninjas
• a silence of ninjas
• an inevitability of ninjas
• a doom of ninjas
• a black of ninjas
• a balaclava of ninjas
• a probability of ninjas
• a whisper of ninja
• a lurk of ninja
• you don’t call them anything, because you don’t even know they’re there

collective plural, lurk, metafilter, name, names, naming, ninja, ninjas, whisper