Definitions by BobTheEcoFreak

ecomodder 

A person using modifications to their car in hopes to increase his MPG. This is normally done to increase mileage for cheap in order to save money.

It can be from throwing parts into your engine to make it more fuel efficient or by making your car/bike more aerodynamic

Look at that custom boat-tail, he must be an ecomodder.

ecomodder by BobTheEcoFreak September 16, 2012