Diddy 

a $10 bad of weed

Man: yo man let me get a diddy

drug dealer :$10 bro

Diddy by keagle February 18, 2011

Diddy 

A colloquial term, originating from the NSW Central Coast of Australia, referring to the male reproductive organ when in its flaccid, non-erect form.

Please don't flick my diddy.

That old pedo touched my diddy.

Ouch, you hurt my diddy.

Diddy by JayVeeDawg July 30, 2011

diddy 

1. to not keep your word.. a nicer way to say lying..

girl-"yea imma come thru!"
guy- "you said that last night"..."stop the diddy!"

diddy by j. lo May 25, 2003

diddy 

a fully nice person with a large penis to rape children with

he is such a diddy

diddy by anal poo bum wee wee August 17, 2014

diddy 

A little toiletry.

Did you pack your diddies??

diddy by Rachelsqu May 26, 2003

diddy 

slang for any type of usable thing

The boy referred to his guitar as a diddy

diddy by Daniel October 9, 2003

Diddy 

A small gathering or "get together" of close friends. A celebration (if you will) filled with merrymaking and idle chatter.

Kristin, please come to my diddy this evening dressed in denim and carrying a reptilian flask.

Diddy by Serena Leahy December 11, 2008