To remove the cargo or load from
To let go or get rid of as being useless or defective, for example
To get rid of completely by selling, especially in quantity or at a discount
We're going to dump everything we don't need.
Sorry. New client brought in a dump truck full of receipts and needs his return done by close of business today.
Is it OK to dump nuclear waste in the ocean?
And why did you dump Brian?
If your girlfriend was going to dump you, wouldn't you rather it happen at a beach house?