(Britain, Ireland): A leg that is painfully numbed, stiffened, or cramped by impact such as by a deliberate or accidental kick or other blow.

Known as a charley horse or charlie horse in the United States where it can also mean a blow to the arm, often given during horseplay.
* He lashed out with his foot and gave him a dead leg.
by Josifer March 15, 2012
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its where you smash somebody in the leg really hard and there leg goes like numb, and they have trouble moving it because you just smashed it.
Dooge: man just shuts aop!
Matt: DEAD LEG!!!(smash)
Dooge: ow man shits!
by matty November 7, 2004
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A painful swelling, normally in the thigh, caused by a punch or quick blow. Bruising and discoloration tend to follow dead legs and leave the victim with a numb leg that is hard to walk on. Normally occurs between guys but rare instances of girls giving guys dead legs have been discovered. Also known as a Charlie Horse.
Claire: Hey I don't know what a dead leg is.
Will: Hey you're right.
by Bootstrap Will February 5, 2010
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Putting a swear on something but instead of a swear its putting it on a dead leg.
Ex 1: Man im finna kill my dogs sista on freakin dead legs

Ex 2: Main i hate my mf math teacher and i put that on dead legs
by The Coochie Advisor February 9, 2021
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To hit some one hard in the back of the knee while all their weight is on that one leg.
Kicking some one in the back of the leg. Dead Legging is fun but hurts
by Sookielie December 4, 2008
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When a girl just lays there during sex and doesn't put in any work at all.
Man, I was gettin in this girls guts and all she did was lay there! Damn dead legs!
by t187 June 15, 2013
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Nickname of a usless brother-in-law who is totally gormless. Enjoys fishing (the sod with a rod!) and lying about how fast he drove his car on certain roads.
Dead Legs: Can I use your car to put my fishing gear in it?
Me: NO.
by LabMouseAntics November 8, 2004
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