The insane, near impossible feat of not masturbating for all 40 days of Lent.
Taylor: "I'm doing the 40 day challenge."
Alex: I tried that last year. I lasted about a day!
by Fat Swimmer February 18, 2010
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The 40 Day Challenge is a test to see whether or not you can give up masturbation for the 40 days of lent. You can perform any sexual acts except masturbate.
Will: How's the 40 day challenge going bro?
Josh: It's day 27 and I'm still going strong.
Will: Damn. I couldn't even make it to day 5.
by 6equals6 February 2, 2015
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The hardest fuckin challenge. not whacking it for twenty one days!! if u handle this challenge u got a horse cack
Eddy: Why is Ron always horny?

Kev: Didn't he tell you? He's on that 21 Day Challenge!!
by Hugecack!!!!! January 4, 2011
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(noun); a 30 day commitment to spam everyone's Facebook in an attempt to tell people useless details about your life for attention; a horrible disease spreading through Facebook; a stalker's best friend; (verb); To be unbelievably annoying.
Girl: "OMG!! 30 Day Challenge!!"
Girl: "Weelll... 30 Day Challenggeeee!!!"
Guy: *Facepalm*
by the way.. please stop.. March 1, 2011
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When you see if you can last a full week without texting or social networking anyone of the opposite sex(excluding Family).

This challenge came about when a bunch of friends bragged that they could live happily by themselves but would text guys/girls constantly. Thus, this challenge was born.

To this day, I have not met anyone who has lasted an entire 7 days without breaking at some point.

This challenge is really just a test of will as well as a test of not giving in to the temptation of attention from the opposite sex.
Sally: "I'm so sick of guys bullshit, if I never talk to another guy again I would be happy."

Jessie: "Why not walk the walk and take the seven day challenge just to make sure?"
by Poston03 May 2, 2011
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To abstain from ejaculation for a full week. A true test of manhood, especially among a group of friends. It is unclear if the 7DC is more difficult while being single (masturbation) or in a relationship (intercourse).
Jesse: "What's up dog? Did you know if you don't ejaculate for 7 days your Testosterone levels go up 40 something percent? I tried to do the 7 Day Challenge but I failed. You should try."

Kyle: " Challenge accepted "
by TheRealKon June 28, 2011
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the 28 day challenge is when a guy doesnt wank for 28 days. hell, i've askd all my guy friends n they're lyk, i cud neva stop wanking 4 more than 2 days!
"have u done the 28 day challenge?"
"no, i miss my cock too much"
by fucking_gorgeous_gal March 9, 2005
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