A unit of measurement when describing how much (electrical) wire is pulled past the destination it should have ended at.

How to tell when to start measuring is when enough wire is pulled to the given location to be able to comfortably complete a termination and then finding more wire was pulled than needed, most often in excess, and ironically most often its copper wire. Once you've determined theres way more wire than needed, its a dave length.. No actual "measuring" is done with any tool. It will be obvious just from "eyeballing it" when you have a dave length to deal with,

Some dave lengths can be short, usually because its only small guage wire such as #14, however a genuine dave length will be found when #10 and larger are involved because thats where the money is
"Okay boys its time to splice this place up... Oh look someone pulled 10 extra feet of 8/3 past the panel, i wonder who could have done that.. What a dave length!"

"Hey how much wire do we need at location?" - "im not sure, you never know how often things change, better make it a dave length. Should be good"
by Yellow strippers February 17, 2014
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the distance at which two people stop being attracted to each other, i.e. your radius of attraction. the larger the length, the more women want to do you.
(derives from physical chemistry)
Because Jon's bjerrum length was too small, jen was repelled from him and would not sleep with him.

Bobo does not get any ass because he has such a small bjerrum.

Even though Smith is fat, he has a huge bjerrum and thus still gets girls.
by Merman November 21, 2005
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1.An arbitary unit of measurement, defined as the maximum length of toilet paper used when cleaning ones spunk from the carpet (8 sheets).

2.Used as an insult, meaning you are toilet paper covered in nob sneeze.
1. I was literally a wanker's length from getting the bus.

2. He was really tall, about one and a half wanker's lengths.

3.It is about a 200 wanker's length walk to the shops.

4.You fucking dumb wanker's length.
by Joniquai March 20, 2005
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the complete length of the penis inside the anus/vagina. its the absolute fullest length and includes all the penis and even some of the skin around it.
"hakko got the full length from me! ahahaha" - Macho tiger
by Hakko November 21, 2004
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1) In special relativity, the proper length of an object moving at velocity close to that of the speed of light is its length as measured by an observer in the rest frame of the object.

2) A massive shit.
1) Will: Dude, that 30cm ruler travelling at the speed of light looks to be only about 28.5cm.
Nathaniel: Yeah, that's because it's proper lenth is 30cm.

2) Nathaniel: Dude, I just crimped out a proper length.
Will: Yeah, thats a proper brown length.
by justabusta January 22, 2011
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To initiate coitus when time is of the essence.
See "quickie"
Can be used in a tactless attempt at seduction but often resulting in rejection
First usage of term was overheard in a church pew in Brussels
1. "Do you fink I might chuck a length love before the bus gets here?"

2. "You wouldn't believe it but the bird let me chuck a length in her arse before high tea"
by Ginalee83 January 13, 2014
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When two men touch their penises together at the head, then find the length of both put together
Aaron and I found our bond length last night.
by PiperPerri69 January 7, 2021
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