Big Scaldy Night Out - A night on the town where exceptional inebriation occurs, usually followed by a take away and regret. A night that is eagerly awaited but also feared.
Heading out with Claire tonight, it's going to be a BSNO - I'm afraid.
A contraction of 'Serious Business', popularly used among the Red vs Blue forums, as well as various other ports of call around the internet.
It's main use is mocking, when someone takes the internet too seriously or takes a joke too seriously, people will often remark on how it is "srs bsns".
BSNBC is what the cable network channel MSNBC is sometimes called. It received this name for numerous examples of "BS" and extremely biased, far-left propaganda promoted on the channel.
Person 1: "No, that is not possible. Barack Obama has never made a mistake in his life! He is almost a living god!"
Person 2: "What the? You really need to stop watching BSNBC and Chris Matthews."