Answer Question
BOS in a text message means "Boyfriend Over Shoulder".
Boyfriend Over Shoulder means that somebody (usually a girl) can't really talk (on the phone), or chat because their boyfriend is in the room (or close by) and don't have any privacy.
'Boyfriend over shoulder'
What does the emoticon .-. mean in text?
What does the acronym GOOG mean?
What does BRUK stand for?
What does the word LG mean?
What is the slang definition of Cell Phone?
What does KEY mean?
What is the slang meaning for Holla Back Girl?
What is the meaning of UMBJ in text?