Ogopogo means: A large serpentlike aquatic creature, similar to the Loch Ness monster, which is said to live in Lake Okanagan, British Columbia, Canada.. It is crypto-trading vocabulary; common on X, Discord servers, and trading-Telegram groups your teen may follow. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. 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.