1 definition by J. Koenig

Top Definition
A type of siren found on Fire Apparatus & Ambulances.

Sounds like an air-raid siren coming down the highway. It uses air to generate its immense sound.
"Fire up the Q2 so we can clear the intersection!"
#q #federal signal #siren #fire truck #ambulance
by J. Koenig September 06, 2006
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