1.noun(of marching bands) an internal competition used to practice marching commands, in which the last person caught improperly executing a command wins
"We knew someone had lost when the last two people in the drill down ended up facing each other."
2.verbTo examine information at another level or in greater detail; especially in a database, to navigate to a more detailed level or record
"From the employee list, you can drill down to find addresses and pay history."