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2.
The disease in which you never show any emotions through facial expressions, like Kristen Stewart.
"Dude, are you alright?"
"Yeah it's cool. I just have a bad case of Bella Syndrome."
by Nicklovesgames March 01, 2013
 
1.
The unnatural clumsyness of ones self in the presence of others
Dude that chicks got total bella syndrome she cant stand muchless walk
by DemonTate November 17, 2009
 
3.
When a girl is stuck in a love triangle with a dead guy, and an annoying that pretends he cares about her issues that also has some type of animal connection.
Dude Elliot so has Bella syndrome now thanks to Todd.
by Death of a sellsman April 10, 2011