Pretty sure it refers to the inverted-vee hull... In certain viewing angles it looks like it is trying to be a cat.
I know a little... I worked there in my youth. Started sweeping the floors, graduated to preliminary sanding on the sail hulls and sleds. Later...
Back in the late 50's {yipes!} I helped produce a wood 'Inverted Vee' sport boat. Built from Birch aircraft and marine plywood and skinned in...