Bush pilot means: A pilot who engages in bush flying: piloting small aircraft (bush planes or bush helicopters) to and from remote locations, over expanses of relatively unpopulated territory.. It is mainly Canadian English and may not be understood outside that context. 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.