One who has nothing better to do than watch for people who sit on table tops and tells them that they cannot sit on the table because it will break.
Spc. Lutes: Hey! You can't sit on that table. It will break.
Sgt. Table Sitter: Yeah?? Well fuck you, you fobbit faggot. Go run a mile and talk to me when you get back. Don't you have some spatula's to wash? What color is your belt buckle?? You fucking Table Nazi!
When someone's anal about how you hold your fork or some shit at dinner, and proceeds to throw their utencils at you and break dishes in a fit to have you conform. Like my dad.
"What a fucking table nazi! All I did was slurp and he fuckin broke a dish on my brother's head; so I did it again, and so did he. What a fun game."