what does it mean when blue jays flock together?

I don't think he will, he's a rapper for goodness sake.

In British usage, a tanner was a sixpence, and a bob was a shilling.

Oh my goodness....YES! Many times, for many people, for many occasions....

leno

By the way, Back Door Man, You Shook Me, I Can't Quit You Baby, Spoonful and a hell of a lot of other classic blues songs. Willie wrote em. Roy Buchanan was my first guitar teacher and mentor. Carlos Santana was a friend and very influential on me. But one more guy was also extyremely influential ...

It generally means it is safer to bathe there than a beach that hasn't been awarded a blue flag i.e the quality of water is safer.