One who identifies as a Hipster, but occasionally enjoys something mainstream. In some cases, they may not favor something released by mainstream, but rather reject a good portion of Indie culture.
A PTF is a person who desperately wishes to conduct a "Friendship Session" and will, unrelentingly, pester you until you do accept some terms. Then, after the session, they simply fade back into obscurity for weeks or months until they become bored again.
"Damnit, he's calling again!"
"What? That's the fifth time this hour!"
"Fuck it, i'll set up the damned Session so that I don't have to deal with this Part-Time Friend anymore."
"It doesn't last forever, you know. He'll bug you again in a week."
"*Sigh* I know..."
A precursor to the hard on, a cousin of the half schaff, and little brother to the half wood, a sudden rush of blood to the penis resulting from visual or aural stimuli, whether sexual or otherwise. Usually felt and identified when the male member first comes into contact with the fabric of the pants; often concealable with proper use of misdirection and hand gestures.
Bro: Dude, when your mom called my name to get my attention the other day, the sound of her voice made me pop a part on. I had to keep scratching my nose so she wouldn't notice the extra weight in my package.