The characteristic face made by a douche bag who is trying to look 'tough.'
Though such a face is an intrinsic quality of ANY douche bag, it's most frequently manifest through accentuated or otherwise puffed-out lips and squinted eyes which may or may not be accompanied by a slight hiking-up of the shirt to show one's recently pumped-up six pack.
"I was trying to look respectable, but Ian was totally making a douche face during the group photo!"
*Note* Visible examples are available on the appropriately named "hot girls with douche bags" website. (look it up).