Best definition
WBFB was created in August of 2011. It means you will never know what WBFB means, but it was a

good try to find it here at Urban Dictionary because YOU MAY NEVER KNOW.

Random Guy- “I scored 2000 touchdowns in my life.”

Mekenzie- “Umm, Ashton, this WBFB.”

Ashton- “Yeah I agree!!”