Pathetic Dickless Failure.
A PDF is someone who rarely ever attempts anything risky in life and when they do, they always fail at it.
I don't have a job, I don't have friends and I've never been kissed. I'm a PDF.
John - hey Jack what do you wanna do tonight?
Jack - PDF of course.
John - What's that?
Jack - Party, Drink, and Fuck.
acronym for Portuguese Dry Fuck
I didn't have any rubbers so I just gave her a pdf.
PDF stands for a post dump fuck.
I hope this girl has Adobe Acrobat, cause im ready for a PDF!
*some teacher screws up in the middle of the classroom*
Student: PDF!