A person that sits in their parents basement listening to scanners, and posting the information on their shitty firewire, or emergency alerts facebook pages.

An individual with an extreme obsession with anything involving the Fire Service. one who becomes overly excited over any emergency call just so that they can over assesorise there vehicle with lights, sirens and mobile radios. from trees down to working structure fire's they use any means nessisary to be the first on scene (ie. driveing past the fire house in there own vehicle with out the life saving equipment at the fire house) Also known as a Ambulance chaser who listen to the emergency radio waiting for an emergency call to either observe or try and take control of the situation weather they are called or not. these people usually are undertrained and usualy are not to brite. They obsess and glout the fact that they have the title Probationary Firefighter or EMT but they never care to mention the Probationary Part! are usually probies and wanna-b's

EMT, Firefighter or EMT\Firefighter who has a lot of flashing blue or red halogen, strobe or L.E.D lights on their vehicle so that you can see them from a mile away, has at least 1 mobile\hand held scanner or two way radio, wears their squad jacket everywhere in the winter, wears squad\fire department t-shirt every day in the summer. Can be easily spotted by the presence of several pagers on their belt from several different fire departments and\or squads because they want to claim that they run more calls than anyone else. They don't just show up for the good calls, but they get especially excited upon hearing the words "structure fire" or "MVA with entrapment". Often the first person at the squad building or the firehouse when the call goes out because they were listening to their scanner or radio.

Someone who has an extensive amount of emergency lights, police equipment, and antennas, legal or illegal, on their personally owned vehicle. This person typically has several excuses to justify their “equipment” usage or installation, and often try to find reasons to use them. Whackers normally get extremely hostile when confronted about their lights. The average whacker is a 16-30 year old scrawny or overweight male, who is in some sort of community safety club, like a police explorer or neighborhood watch. Most whackers have the lights because they enjoy the power trip they get when they are perceived to be a police officer. Most, if not all whackers suffer from severe superiority complex issues, as they lack any sort of power in their job or personal life.

Geeky person who longs to be a police officer or anyone of authority or importance. Usually has a car with antennas and lights with no authority to do anything. May have a police scanner hanging from his/her belt.

A volunteer fireman who focusses life on being a frieman. They often brag and like to tell people the are a fireman and over accessorize when it comes to lights and antennas on their cars

A poser who uses affiliation with a fire or EMS dept to try to seem cool. Usually a young inexperienced member of a volunteer fire or EMS service who has the lowest possible position (volunteer truck washer) in the department, hangs out at the station house because he has no life, and is usually fat and has 5 chins, or is mentally slow, has no women, and lives with three dogs that pee inside his house, but somehow this same dude has $8,500 worth of emergency lights and bullshit on his car, installs a siren to replace his car horn, wears the same "FDNY: 9-11/never forget" baseball cap and "thin blue line" shirt EVERY DAY, and carries a huge scanner radio in his coat pocket. The Whacker will use said radio to listen for emergency dispatch calls just so he can use his lights and siren to respond to the scene at 90MPH, almost causing 20 accidents on the way, just to direct traffic with a glow-baton while REAL first responders do the grown-up rescue and firefighting work... A whacker tells everyone else he knows that he is Assistant Chief of the whole department even though no one believes him.

A wannabe hero, usually a fat guy that has four devices hanging off his belt.

Anyone who amasses a collection of amber or white flashing strobe lights for their vehicle so they can pretend they are important. This may also be accompanied by an antenna or black rims. Whackers are a problem because they dilute the already fragile emergency signal, which is used to serve communities by police, and fire/rescue services.