In the music industry, when a song or album is being put out before it is officially released, usually online.
Sometimes when an artist's album has been leaked, they release their album earlier than planned for fear of the bootleggers.
by Tricia February 26, 2005
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1) to bleed excessively

2) To urinate
"Fuck it, man. I'm leaking like fuck!"

"I need to take a leak"
by Gumba Gumba February 23, 2004
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Poker slang for an inefficiency or bad tendency in one's game that costs money over time.

Like many poker terms, it can be applied to life as well.
"I limp too much in early position, it's a big leak in my game."

"I always forget to pay my credit card bill on time and they charge me a $29 late fee."

"Dude, that's a major leak."
by milesmason777 December 22, 2009
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I chatted with this str8 guy all day at work. He was talking shit and had me leaking in my pants like mad.
by lajerker July 23, 2005
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To let enemies pass in Warcraft 3 online.
Starters usually leak a lot by forgetting to kill their enemies.
by Ghetto Geek August 02, 2006
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