1. Motorboating but down under and bit to the rear.
2. The act of someone oscillating their face back and forth while pressed against your gooch, while making 'brrrrrrr' sounds.
3. Motorboating for your gooch.
Guy 1: Gee this Coronavirus is really allowing me to find out more about what I like in bed Guy 2: Oh yeah me too, the wife gave me an Australian Motorboat last night it was nuts
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.