A legal defence to accusations of theft, popular in the somewhat down-at-heel South Wales Valleys town.
The defence consists of 'It wasn't nailed down, your honour.'
'I drank one of Rob's bottles of wine. I intend to use the Merthyr defence - wasn't nailed down, was it?
by The Moai April 11, 2005
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a way for a girl to get out of someone flaming on them, by playing with their enormous breasts, or drawing attention to them, because they are too mentally challenged to use comebacks.
"Man holly krull is always using boob defence." -Jana
"yeah, she must be the dumbest person i know." -Erick
by Jana Boatman February 8, 2008
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"Just obeying orders". This means precisely what it says.Failure to obey orders for Germans in any of the armed forces meant the firing squad or punishment battalion.Incompetence also equalled failure to obey orders.A punishment battalion usually meant that your days were numbered.So strictly adhering to orders was the only option for Germans in WW2.And of course not all would have been "nazis" ie members of NSDAP.Putting the General Staff of a nation on trial is definitely a dangerous precedent.
Fight to the last man and the last bullet for Greater Germany.
by maiden July 5, 2004
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Rejecting responsibility for any wrongdoing within your organisation because it's too big. Laying the blame on people who you trusted that let you down and let down the people who you trusted and so forth. Then claiming you're the best person to clear up the mess!
Louise Mensch: "Mr Murdoch, have you considered resigning?

Rupert Murdoch: "No."

LM: "Why not?"

RM: "Because, I feel that people I trusted, I'm not saying who, I don't know what level, have let me down. I think they behaved disgracefully and betrayed the company, and me. It's for them to pay. I think that, frankly, I'm the best person to clear this up. I plead the Murdoch defence!"
by technika69 July 20, 2011
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Defence Nukk, a RuneScape legend. A famous RuneScape player, also known as one of the richest RuneScape players. Defence Nukk also ran RuneScape MySpace.
Damn dude, Defence nukk added me! I'm famous!
by lover romeo January 20, 2009
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A defensive form of urinating in a public toilet when surrounded by potentially gay men. The subject in question tucks his genitals between his legs and turns his back to the unirinal in order to urinate. This both removes the element of rear end exposure to the room at large as well as makes the subject seem as female as possible by creating a mock vagina.
I resorted to the mangina defence, they left me well alone
by allons-yallonso May 31, 2010
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This is when a guy realises you have caught him cheating or telling lies.. he avoids you, your calls and makes everything seem like you are at fault.
He used defence mechanism on all his ex's.
by Mizboss March 21, 2017
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