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2.
Someone who normally eats meat, but due to financial strain, and being on a budget is sticking to beans and veggies.
Wow, I really wish I could afford a nice steak, but ever since I got laid off I'm a practicing budgetarian
by mcknazzy August 05, 2010
 
1.
a person who lives on a budget, more inspired by philosophical and political beliefs than by financial necessity.
I'm not going to buy those or any other $500 shoes; I'm a budgetarian.
by Lil Howler December 13, 2007