a male's hair that is overly long, resulting in a negatively unkempt appearance that is not attractive in the slightest.
the addition of "over" to "flow
," which means flowing, longish hair, takes flow to the next level to connote a hairstyle that has no aesthetic or bro
usually sported by males who believe themselves to be bros.
flowing bro: bro, you should chop your nasty overflow.