What you actually said ("more on"), but the nearby "moron" wif a chip on his shoulder wasn't listening/thinking properly.
You: This truck isn't filled with as much wood as it can safely carry --- we can add some moreon.
"Touchy" idiot who's assisting you to load firewood: Hey! Who you callin' a MORON?!??
1. an individual with a preoccupation of discovering and obtaining an increasing collection of material goods. Motivation ranges from simple greed to an appreciation of the intrinsic value of particular items.
2. an individual with an unhealthy obsession of being the first to discover, obtain, and collect.
He waited in line all night with the other moremongers for the midnight release of the album.