an old school slang word used to disapprove the actions or suggentions or another. the dates of the actually week is the 28th of january - 4th of february.
When a bunch of guys engage in a full weekend or a brief vacation with the primary intent to violate women (ex. Pussy grabbing)
Donald Trump, Billy Bush and friends planned a huge Billy Bush weekend during the 2016 U.S. presidential election and they even filmed a clip of the conversation on tour bus.