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An acronym for "Delete If You Don't Know Me". Usually used in sending blanket emails to cover a large number of audiences in global corporations. This term is most likely to be found on those spam emails to say the sender is leaving the company.
e.g. (Alice and Bob both received an email from Charlie with a subject line "Leaving the firm - DIYDKM")

Alice: Have you seen Alice's leaving email, the one with DIYDKM.
Bob: Yes I saw, I can't wait that this first class wanker is finally leaving! Let's go out and have a drink tonight to celebrate!
Alice: Deal!
diydkm by at299 April 29, 2015
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DIYdom; 'Do It Yourself Condom'

Increasingly popular in the upcoming generations to combat teen pregnancy, STD's and save £2.49 ($4.79) on retail contraception.

Unfortunately even though the heart was in the right place, the intellect of these creative minds meant DIYdom's were doomed to fail and even brought along there own problems, which in most cases were seen as embarrassing rather than harmful

This method has been deemed by professional university drop outs to be an even stupider method than the other commonly used Pull and Pray.
Creative Mind One: Didn't have a condom last night
Creative Mind Two: You Pull an Pray?
Creative Mind One: Nah, I used a DIYdom
Creative Mind Two: DIYdom?
Creative Mind One: Yeah, Made a home made condom
Creative Mind Two: Really? How Creative!
Creative Mind One: Used a Empty Crisp Packet & a Rubber band
Creative Mind Two: Did it work though?
Creative Mind Two: Yeah 100% mate! innit
DIYdom by DazzKK March 9, 2007
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