B.O.A.T.S.
A way to say something is somewhat true, but mostly made up. People use it like a crutch when they can't tell the whole truth.
"I didn't steal the pizza, B. O. A. T. S.!", said by someone who also didn't steal the bread.
"The teacher said I failed, B. O. A. T. S.!", said by someone who probably failed.
"The dog ran away, B. O. A. T. S.!", said by someone who also ran away with the dog.