Efficientist 

Someone who is time efficient

“William is a time efficientist”

Efficientist by Robiorta May 30, 2018

efficienist 

An individual whose life is centred on being as efficient as humanly possible.

Neil is an efficienist, there is no doubt about that. He hates inefficient people, and believes there should be a law restricting those people from interacting with society.

efficienist by Neil Kifflife June 22, 2012

efficientize 

to make something better, to make it more efficient

wow found out a way to efficientize a windows machine (lol oxymoron)...

efficientize by Alexander Miles September 19, 2008

efficientising 

To take a process, practice or set of actions and make them more efficient.

Wife: "What are you doing?"
Me: "I am efficientising how I do my proposals."
Wife: "Where's the baby?"
Me: {silence}

efficientising by KnightSmithJones May 12, 2018