What does OB stand for?
OB stands for "Out (of the) Blue"
How to abbreviate "Out (of the) Blue"?
"Out (of the) Blue" can be abbreviated as OB
What is the meaning of OB abbreviation?
The meaning of OB abbreviation is "Out (of the) Blue"
What does OB mean?
OB as abbreviation means "Out (of the) Blue"
