There is an old adage among lawyers that says, "If you have the facts on your side, pound the facts; if you have the law on your side, pound the law; if you have neither the facts nor the law, pound the table."
What does pound the table mean?
To strike a table, often repeatedly, with a fist, gavel or similar blunt object. verb. (figuratively, law) To vehemently assert one's position. There's an old legal aphorism that goes, "If you have the facts on your side, pound the facts.
When you have the facts you pound the facts?
Trial lawyers have an adage: If the facts are on your side, pound the facts. If the law is on your side, pound the law. If neither is on your side, pound the table.