It means, to be playing a game online or SP, and enemies walk up behind you.
Guy: la la la la la
Enemies: LOLOLOLOL AMBUSH
Guy: OMG Ambush!
by TEH AWSOMER October 9, 2008
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When you have been taken out with out realizing it is a date. After this unknown date you are told it was a date.
One day after crew I caught a bite to eat with a guy friend and had a nice long conversation. Needless to say later in the night I was caught off guard...

Andy: Did you enjoy our magical 2 hours and 3 minute date?
Jess: ::confused look at computer screen:: what date?
Andy: :: confused look at computer screen:: Our ambush date,duh!
by The snoozer January 21, 2011
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When both parties agree not to give gifts for an occasion, (usually Xmas) and then one of the parties gives one anyway (with or without warning/malice/regard)
I told my uncle Whatshisname to NOT give me a gift this year, but the fucker gift ambushed me. I chopped him in the neck, so we are even.
by UrbanAmanO January 5, 2009
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When the TV shoes things at meal times you don't particularly want to see while your eating.
Ambush TV is when they show nappy adverts in the morning. The last thing you want to think of over breakfast is babies sh*tting.
by Deathflower October 1, 2012
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When a guy convinces a girl to go down on him and when she pulls it out, he pisses in her face.
"Jane smelled like urine after Tarzan gave her a golden ambush"
by Nicky NOTORIOUS March 23, 2004
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The act of fucking a girl doggie style while having a friend watch porn in a closet that you are facing. when your friend is ready to bust have him knock on the door. once you are also ready to go, pull out, spit on her back, and yell. Your friend will come out of the closet while the girl turns around and you nut in her face. when she turns away from you your friend will be right behind her and will ambush her with a nut shot.
Man me and my buddy houdini ambushed that bitch so bad last night, she never knew what was coming
by Chris Daughtry January 15, 2014
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A synonym for suprise buttsecks. When you fuck someone in the ass without informing them first.
I gave her some ambush sodomy.
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