Two law enforcement vehicles, usually city or county cops, sitting side by side drivers side doors next to each other with there windows down. Officers exchanging either gossip and donuts or just donuts.
Passenger: Slow down, there's a donut conference in that parking lot up ahead.

Speeding driver: Cool, Thanks I was doing about 20 over.
by Rjhyardbug2 January 23, 2012
Get the Donut Conference mug.