Dwile flonking means: An obscure and intentionally preposterous sport in which teams take turns to dance while avoiding a "dwile" (beer-soaked cloth) thrown by their opponents.. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. It is sporting vocabulary and harmless in itself. 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.