PDF (acronym)
PDF is an Acronym which stands for - "Passive Dick Face"
It's the
male equivalent of RBF - "Resting Bitch Face"
not to be
confused with .pdf (Portable Document Format), which is owned by the Patent Trolls at
Adobe.
Her: "Most guys don't approach me, because I
avoid direct eye
contact, and I suffer from RBF."
Him: "Most gals avoid me because my PDF makes me seem psycho, but If you get to know me, I'm
chill."