It is a phrase that means "the fact of the matter is".
The thing be say him no even buy the cement.
The Official Pidgin English Dictionary
Paddy DAT tilapia dun show
Guy, I no hold kaluba
I have heard you
Boy I hear talk
No ken Simoke (No smoking allowed)
To act stupidly
Oh boy why you dey jones?
What an iranuous movie?
Someone that likes good things
Bolanle like better thing
The thing weh Adey talk no I figure say u dey bab
What's says the time
Broski Enack Kamuchy awon go bed dah be why adey biss
The thing be say
Fall my hand