|1.||Whatever floats your root beer|
"I don't get it, but hey--whatever works for you."
Used to denote ambivalence toward another's choice of action/food/hobby/sexual partner.
See Whatever humps your camel, whatever floats your boat.
From the delicious invention of the root beer float, a scoop of ice cream placed into a frosty mug of Sprecher's best.
Two kids sit down in the cafeteria.
Ryan: Sweet! My mom packed me a peanutbutter & tunafish sandwhich for lunch!
Josh: *enjoying his pizza Lunchable* Whatever floats your root beer, dude.