definition 2 of fluster is a state of nervous confusion
Confuse, discomfit, throw off-guard, bewilder, bother
definition 1 of fluster is to make nervous and confused : UPSET definition 2 of fluster is a state of nervous confusion
You fluster somebody by making them extremely worried and stressed out.
I just couldn't beat that level, I was so flustered.
definition of fluster is as noun- A state of agitation, confusion, or excitement. so the sentence- The boy was so flustered because he couldn't beat a level on a video game. if you didn't like this...