Short for On The Ball , a term widely used in soccer describing a player who is efficient and professional. Also used to describe anyone similarly alert , and can be used to describe someone who is attractive or intelligent.
As in "Pele was always otb" or "Man,she's otb"
by Big Gazza WMD December 02, 2005
"One Tough Badass." A manner of describing an especially masculine and beastly dude. The type of guy who will kick some ass and take names...and look fucking cool while doing it.
"Man, I just watched 'Big Trouble in Little China' for like the 100th time last night, and let me tell you, that Kurt Russell is OTB...one tough badass!"
by knebbles June 12, 2009