look up any word, like darude - sandstorm:
 
1.
1) one who has no personality; dull and irrelevant

2) just a top bro

3) someone who dresses like everyone else, with some edge

4) someone who thinks they are flawless
Ralph Lauren, J Crew, Urban Outfitters, Abercombie & Fitch, BASIC BROS wear that shit so I don't even bother
by recordfamous May 01, 2014
 
2.
Exceedingly ordinary male.
Defined by choices in clothing, hobbies, lifestyle, and women

A basic bro will gravitate toward such things as fantasy football, golf, untucked button downs (especially for evening look), own a significant amount of sports attire, Axe, man caves, women who wear large scarves and carry coach bags.
by Wöbis April 03, 2014
 
3.
The male equivalent of a "basic bitch". Some basic bro behavior includes:
~ Wearing Ed Hardy shirts
~ Drinking Natty and/or Bud Light (usually day drinking)
~ Using copious amounts of Axe Body Spray
~ Removing one's shirt at the start of a basketball game despite nobody calling "skins"
~ Taking theme parties far too seriously
~ Wearing a baseball cap sideways or backwards and also wearing sunglasses to keep the sun out of their eyes
~ Playing the guitar in public (badly)
"Fuckin' Todd is here. Dude is such a basic bro."
by WookieeValentine April 06, 2014