Sell down the river

[T]he Prime Minister was listened to with respect when he replied to Opposition hints that Ethiopia was being sold down the river because Britain was afraid she or her ships might suddenly be attacked by Italian airmen.

Somebody told me, I know where to go Somebody showed me, I was last to know Sell me down the river Sell me down the river Sell me down the river Sell me down the river What I wanted is what we wanted What we wanted is what she wanted

"But screw it, this bastard is selling America down the river. He's a traitor."

As a result, analysts were routinely selling investors down the river by promoting stocks purely to land banking business from companies.