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3.
Private school lad. Not a real lad but a lad of sorts. Usually a toned down version of a lad or one who acts like one to be cool.

Must not be mistaken for a real lad.
Person one: "Did you just see that lad over there!"
Person two: "Dude, he's not a lad! He's a Prad, he's wearing a hat and blazer!"
Person three: "Yeah man he's so right he's deffinately a prad."
by Shack Anon. June 01, 2010
 
1.
Feeling proud and sad at the same time.
When i lose a video game against my friend, he becomes really happy, so i become prad.
by tranquility of karl September 01, 2014
 
2.
Post Related Anxiety Disorder or PRAD is a mental health condition that's triggered by a post / mail event — either experiencing it or witnessing it. Symptoms may include flashbacks, nightmares and severe anxiety, as well as uncontrollable thoughts about the event.
Examples of PRAD include uncontrollable checking of the delivery status of items being delivered by courier and an inability to leave one's house on the day a package is supposed to arrive in fear of missing the postman / Currier.

John: "You look terrible Paddy, what's wrong?"

Paddy: "I didn't get any sleep last night, a package I was waiting for was supposed to be delivered yesterday but it never came, what if it never comes John! I can't take the 'not knowing', I've already called the Currier and they said the item has been delivered! I've considered taking the day off work, just in case they try deliver it there."
by karu_hundu October 22, 2014