Personal Digital Assistant, a small pocket size computer that usually runs calenders, phonebook, games etc. these days they even work as mobile phones, see smartphone. smaller than a laptop, bigger a mobile phone... often used with a "pen" or a mini-keyboard
i got a cool new phonebook for my PDA.
by deice May 27, 2003
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Public Display of Affection. When people display "affection" in the viscinity of other people. Hugging or more, usually. Why does everyone think it's gross or that people shouldn't do it? I don't know. They obviously don't believe in love. People shouldn't have to hide their love.
Girl 1: Eww that's a PDA right there! Get a room!!!
Girl 2: Shut up, it's romantic.
by Mark February 01, 2006
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ENFP Kelly met her INTP boyfriend, Brian at the boathouse after spring break while waiting for crew to start. Because they hadn't seen each other for a week, she hugged him. Brian was initially hesitant about her PDA, but gave in, although he was somewhat happy and sad when she detached.
by kalrocky July 11, 2009
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When estimating dates for a project, a wild guess, usually inaccurate.

PM: β€œWhere did you get those dates on the status report?”
Engineer: β€œI PDA’d them, don’t trust them at all.”
by Random PM April 10, 2007
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"PDA" Public Display of Affection, This term is used by young teenagers who like to hold hands, hug, kiss, make-out, ect, in the eye's of the public includes, Citizens, techers, parents (perhaps). This term can also be used to describe anger in example Public display of anger, or art, aardvark (publicly displayed aardvark).
1. "At the party Laura and Paul had to much time for PDA and not enough time for partying."
by Erki July 12, 2006
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Public Display of Affection when two people show there love for each other in public places such as work, retail stores, sidewalks, gas stations, etc.
Jake : Ohh La La!
Kiersten : Oh Jake! (LoL)
Kaylee : What the hell?
Kiersten : Oh Jake loves to stick his hands in my pant's and tickle my pussy!
Kaylee : Well excuse me but sticking your hands in a girls pant's and fingering her just seems inappropriate to me!
Kiersten : It's called PDA Kaylee!
Steve : Oh Steve! Ahhhhh! Ahhhhh! Ahhhhh! Ohhhhhh! Ahhhhhhhhhhhhhhhhhh!
Kaylee : What the fuck's your problem!
Steve : I like to squeeze my penis and make myself cum!
Kaylee : You need help!
Steve : It's called PDA Kaylee!
Kaylee : No it's called retarded!
Chad : Oh Abi!!! Ahhhhhh! Ahhhhhhh! Ahhhhhhhh!

Abi : Uhhh! Uhhh! Uhhh! Uhhh! Cock! Cock! Cock! Cock!
Kaylee : Get A Fucking Room!
Chad : It's called PDA Kaylee!
Kaylee : No it's just down right disgusting!
by SlopNChop August 16, 2018
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