superfluoridous 

When you add an insignificant amount of something to water, thus failing to have the desirable effect. Or when the effectivenes of said additive has peaked for some reason and using more is redundant.

Derived from the words 'superfluous' and 'fluoride'.

"My gran always uses a superfluoridous amount of cordial ; it's pretty much just coloured water."

"The fish tank is already algae proof, so any more steriliser would be superfluoridous."

superfluoridous by John Word Smith November 10, 2015

Superfluidous 

To be in possession of an excess (to the norm) quantity of fluids. This potentiality is applicable in a number of situations, such as in the case of a sportsfellow who brought more than the usual amount of water, someone who bleeds a lot, or someone who discharges rather a large load.

1. Hey man - thanks so much for bringing all this gatorade - I always forget mine. You're superfluidous!

2. "Shit man, that's a lot of blood!"
"Man this is nothing - I'm practically a haemo!"
"Dude. You're superfluidous."

3. Man, I was so superfluidous last night. Yeah, I nut.

Superfluidous by Gregor Duckman August 10, 2008