convivium n.— «Miami and Tallahassee have chapters, which the Slow Food folk refer to as conviviums. I guess it is slower and more impressive to say than “chapter.” And the plural “convivia” clearly has more cachet...
Arizona pinstriping n. scratches to an automobile’s exterior caused by bushes, brush, or branches. Also Arizona pinstripes, usually plural. (source: Double-Tongued Dictionary)
wig-wag n. a rapidly alternating or strobing warning light. Also attributive. Editorial Note: Often plural, since the lights are rarely used singly. Semaphore flags have long been called “wig-wags” in the Navy, Marines, and other...
chatter bump n. a small depression in a roadbed, usually occurring in series and creating a corrugated or rippled surface. Editorial Note: This term is usually plural. Chatter bumps can occur naturally but they are often simulated at automobile...
cocaine bugs n.pl. a skin itch or the sensation that bugs are under one’s skin, caused by the hallucinatory effects of cocaine and its derivatives; formication. Editorial Note: Scotoma, mentioned in the first cite, is defined by WordNet as “an...
fladry n.pl. a string of flags used to contain or exclude wild animals. Also attributively: fladry line, fladry barrier. Editorial Note: In English fladry tends to be used in the plural only, meaning you can have “some fladry,” very...