Top Definition
a fire hydrant, in new york, esp. lower manhattan and brooklyn, esp. one that's open in the summer for kids to play in
when i got home from work, all the boys on my block threw me in the johnny pump
by candybaby August 05, 2006
1 more definition
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New York City fire hydrants were first installed in 1808, and by 1817 flip lid-style hydrants began to appear on street corners. The term "johnny pump" is a nickname for fire hydrants that originated in Lower Manhattan and Brooklyn vernacular.
1. I saw a red johny pump next to the road.
2. The firefighters connected their hose to the johnny pump.
by flyoffacliff August 10, 2012

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