Space Kangaroo
Guys who go to klamath lake after soccer practice and use the boyancy of the super blue/green algae to float them on their backs while they kick their feet to pretend they don't want other teammates to engage them in intercourse.
Bro dude, bro- the whole team went after practice yesterday! There were so many Space Kangaroo that it looked like a turbine was churning the whole lake!