To fight someone 1 on 1 with no one else getting involved
by Al-B April 7, 2006
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Advance notice of something that will need attention.
Just a heads up that the customer is likely to escalate this problem...
by AKG August 30, 2005
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Just wanted to give you a heads up so you'll be expecting his call.
by mandingoe January 18, 2005
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To give someone a warning of iminent danger, trouble or strife.
Dude - Jonny's banging Daves wife! I best call him and give him a heads up!
by Jon-E-Boy January 25, 2006
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Exclamatory warning indicating that one practice increased alertness to avoid harm from a pressing threat.
Dorm Resident #1: Is that an M-80 in the toilet?

Dorm Resident #2: Heads up!!!!

*BOOOM!!*
by kwashia March 28, 2005
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Only two players in a poker hand, typically Texas Hold 'em
by Audreezy April 15, 2008
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