My back's against the corner

There's no going back now 

It's no skin off my back

Go back to old Kent road 

Come back when you can stay longer

Back of the net 

Come back down to earth

Back off 

It will come back to bite you in the butt

It was like stepping back in time 

I could do that with one arm tied behind my back

That was a back handed compliment 

It's back to the drawing board

Can I get a backie

You rub my back and I'll rub yours

^^Backie is a new expression for me. It needed the picture

 

I'm back in the saddle

 

 

She into the wacky backy 

A step back in time

It's good to see you back on your feet

You scratch my back and I'll scratch yours 

We need to put that on the back burner for now

This is a male waxing terminology- 

 

Back, sack n crack 

^^Ouch.....

 

He got a pat on the back

That was the straw that broke the camel's back 

back in the day.....