1 definition by WhiteEden

1. A Blue bandana, a standpoint marking for the street gang called "Crisps" in los angeles

2. A moment raised whenever there are usual signs to show that the guy/girl are going to be eventually cucked; rejected for someone else for pretty obvious reasons
1. you better watch out for them, he's got a blue flag; he's part of a street gang.

2. it is usualy a blue flag in anime where one of the main love interests for the main character in the anime is a childhood friend, their going to be rejected for the suddenly new person, or which ever (girl/guy) is bigger on the poster.
by WhiteEden January 4, 2019
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