look up any word, like spook:
Short for serious business. Also spelled as "srs bzns" if you want to get fancy and all
Person A - School's out.
Person B - ORLY?
Person A - YARLY.
Person B - bullshit.
Person A - Srsbzns. Check the news, smart one.
Person B - My bad.
by signalizing December 21, 2009
Abbreviation of serious business
The internets are not srs bzns.

Try to keep srs bzns to a minimum.
by Rand O'M October 24, 2009