Definitions by k0nfl¡ct

Post Data 

An informal or personal addition at the end of a letter or note written to a friend, acquaintance, or enemy.

Could also apply to a notation added to the end of scripting or coding in terms of a computer language or semantics.

Common known acronym is P.D.

(contents of note blah blah blah)
Sincerely,
(name here)

P.D. (post data) I had a great time at dinner last night!

Post Data by k0nfl¡ct November 2, 2012