Likely nothing profane. The interrobang simply combines the gestures of both of the original punctuation marks. According to Wikipedia, A sentence ending with an interrobang asks a question in an excited manner, expresses excitement or disbelief in the form of a question, or asks a rhetorical question. It can also be used in chess to signal a poor choice of move or strategy, which may have some connection to turn-based Pokémon battles, just a speculation.