look up any word, like fluffer:
 
1.
When a man slightly flexes his arms everytime he passes attractive women, this is The Flex Reflex.

This isn't recommended, because if the girls you are trying to impress call your bluff, you will look like a total ass.
The Flex Reflex-

"Jessica called me out on my Flex Reflex today, I feel like a total ass."
by Austavious Rex April 08, 2010