"Influxive" Natural Recordings by Native Speakers
Influtive (not Influxive) is a rare or obsolete word. However, I assume you meant "influxive". If that's the case, it's an adjective that describes language use that is characterized by a sudden and temporary influx of new or unusual features, often as a result of external influence, such as a foreign language or cultural borrowing.
Influxive
I apologize, but there is no such word as "influxious." It's possible that you meant "influx" or "influential."