monomeal 

A meal that is your only meal of the day (typically a large meal eaten by students)

What are you having for dinner?

2 liters of coke and a large pizza. I skipped breakfast and lunch so I'm having a monomeal.

monomeal by roy123 December 31, 2008

monomeaner 

A single person who who is mean to others for no reason or purpose

John is a monomeaner because he calls Sam a fag for no reason at all

monomeaner by Herbalife lover January 14, 2016