Can refer to many things;
1. Public Relations; Companies trying and failing to act cool.
2. Press Release;
Information sent to the press that can then be sensationalized.
3.
Puerto Rico; Some small island the US bought from spain to win a war or smth
4. Power Rangers; Greatest show of our era
5. Per Rectum; When something is administered rectally, like my c-
6. Pull Request; Some dumb
computer bullshit, I dunno I just thought it sounded funny.
7. Praseodymium; The 59th element on the periodic table, pretty sure it's used to make lighters and planes and shit.
That's just naming a few.