PLF is shortcode for "Party Like Fuck." One can party, and one can party hard, but only truly epic partying falls under PLF. Originally birthed from an legendary bartender in Athens, Georgia, the phrase PLF now resides within the minds of most improv actors at The Village Theatre in Atlanta, Georgia. The meme continues to spread wherever fine alcoholic beverages are sold.
Terminology: to Party Like Fuck, one can (or will) PLF. You can also use the past tense, PLF'd. It is not yet apparent whether one can be in a process of PLF'ing, or if it's a process of PLF (Partying Like Fuck).
A person who has PLF'd or currently is doing so is considered a PLF'er.
"You partying bro? You partying like fuck?"
"We PLF'd all night, and now I have to go to rehab."