40'd 

to be rocking BB40 gear. (aka to be looking fly)

I am about to be 40'd this weekend, all weekend.

40'd by 40'd out. October 21, 2010

Local 40'd 

A term used to describe when an organization kicks one of its members to the curb who did nothing wrong. LOL

Wow, did you see the way the chess club Local 40'd that nigger?

Local 40'd by DagoStallion February 7, 2008

D-40 

what someone does as a job

"whats their D-40"

"oh well sarah's a interior designer and geralld works for marketing"

D-40 by Duncan A October 26, 2006

40 degree day 

a situation in which nothing special happens; in which expectations are not met

The Wire, Stringer Bell-"It's like a 40 degree day...Nobody give a fuck about 40! Nobody remember 40."

40 degree day by 64impala March 13, 2008

40 day challenge 

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!

40 day challenge by Fat Swimmer February 17, 2010

40 Day Challenge 

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.

40 Day Challenge by 6equals6 February 2, 2015

40 deuce 

42nd street in Manhattan

If he went to 40 deuce to drink he will have to have a talk with mom.

40 deuce by The Return of Light Joker January 16, 2009