Much like a dog whistle, however a chimo horn is used to locate child molesters. The mechanism resembles an air horn which emits a blaring rendition of The Entertainer that is only audible to child molesters.

This will of course be invented in the year 2037, during the United States' War On Chimos.
Person 1: Oh Christ, the ice cream truck's here!
Person 2: What the fuck are you talking about? I don't hear shit.
Federal Agent: Busted, chimo!

(Federal Agent and Person 2 throw their arms over the other's shoulder, and give a hearty thumbs up.)

Federal Agent & Person 2: Thanks, Chimo Horn!
by The Rory July 23, 2006
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Much like a dog whistle, however a chimo horn is used to locate child molesters. The mechanism resembles an air horn which emits a blaring rendtion of The Entertainer that is only audible to child molesters.

This will of course be invented in the year 2037, during the United States' War On Chimos.
Person 1: Oh Christ, the ice cream truck's here!
Person 2: What the fuck are you talking about? I don't hear shit.
Federal Agent: Busted, chimo!

(Federal Agent and Person 2 throw their arms over the other's shoulder, and give a hearty thumbs up.)

Federal Agent & Person 2: Thanks, Chimo Horn!
by The Rory July 22, 2006
Get the chimo horn mug.