Named for Bob Ross, the Joy of Painting genious with a monotonously zen-like voice who could make a happy little tree with one brush stroke (and then make a friend for the happy tree so it wouldn't be lonely.. Awww, Bob!).
"My vacation was full of bobrossity. I'd make a wrong turn and end up finding a great little restaurant, a fun sports bar or an off-the-beaten path attraction."
Can also be used as an exclamation when one realises that they're riding the bobrossity wave, usually when they're finding something else going right, surprisingly.
Antonym: Murphy's law.