A class of compact firearms, essentially hybrids between Assault Rifles and Sub-Machine Guns. Designed to be both small and light so they can be carried by Non-combatant Personnel, but still have the capability to penetrate modern ballistic body armour. This is usually achieved by utilising special cartridges, such as the 5.7x28mm FN or the 4.6x30mm HK. Very effective in Close Quarter Combat, this class of firearms has been adopted by several Special Forces, Law Enforcement Agencies and Counter-Terrorist Units.

Notable examples include the FN P90, the HK MP7, the PDW Version of the FN SCAR and the AAC Honey Badger.
...so then these Paratroopers went for our Supply Personnel, assuming that they were easy bait. But luckily, they were equipped with Personal Defence Weapons and managed to hold them back until combatant units were on place.
by Ashirg April 16, 2020
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A player who shows consistent lack of skill/talent/ability. You place these players as far away as possible from scoring opportunities. They show some ability in that they can skate and hit. Coaches will often tell them it's because they are needed back to protect the net.
Oh, I don't score because I'm stay at home defence
by stayathomedefence March 24, 2017
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verb. (to be) Self Defenced. Being attacked/assaulted by someone who believes that they are defending themselves but instigated the altercation
"I went to the Proud Boys rally last Saturday and got self defenced"
by YouTryTooHard October 3, 2020
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hunk buiskitmuch did nothing wrong
hunk is not a murderer they are a self defencer.
by hunk buiskuitmunch March 30, 2023
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DDL is a group of select people who are amping the greatest on earth
“ Isn’t the Don Defence League the best movement in the world.”
by Matthewwantdon March 18, 2021
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When you avoid answering a simple question by saying you’re not some sort of expert

Made famous by Ketanji Brown Jackson
“Senator: So what is a woman?
KBJ: I don’t know, I’m not a biologist.”

“Friend: is it raining?
Me: I don’t know I’m not a meteorologist
Friend: are you really using the ketanji defence so you don’t have to get up?”
by Dr dampness March 26, 2022
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Used if you are caught watching something or listening to something strange
Man 1 : Why the hell are you watching that?
Man 2 : Oh Francis sent it me
Man 1 : Try to use The Francis Defence aren't ya?
by Turtlejuice June 24, 2007
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