Fire drill means: A panicked, all-hands work session triggered by a senior leader getting upset about something. Usually disconnected from real priorities. The ironic reuse of the literal phrase signals nothing is on. It has drug-related associations; worth a calm conversation about which side of the topic your teen is on. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.