1 definition by StNaz

Top Definition
An event when an individual tries to urinate and comparatively insignificant amount of urine is expelled out of the body (less than 50 ml usually).
Example 1:

Man to a Friend: I woke up last night really needing to take a piss. After forcing my tired ass to the loo only a few drops of piss came out.

Friend. It was only a pee-diddy. Don't worry about it.

Example 2:

"I usually end up doing a pee-diddy just before I undertake a sporting activity. I just have to get all the liquid out of me to feel comfortable on the field."
by StNaz August 30, 2011
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