An exclamation!
Kind of like "oh my goodness" in norn-iron (northern ireland) speak.
It's a great phrase because it can be used in so many different situations!
Boys a dear, it's warm today isn't it?
Boys a dear, there are loads of people here.
*lifting a heavy box* Boys a dear!
In this fun filled gamegirls first pick a boys name out of a hat. Then the chosen boy is bound and gagged inside of a large metal box and are fucked while the box is rolled down a large hill.
Over break we went to my friend's house and we played boys in a box. I brought the chains.