a red flag 

something rlly weird and unnessessary ??? idk lol

"ur sisters homophobic ?? thats a huge red flag"

anything thats directed to homophobic , sexist , racist , ableist , body shaming or any of the others is considered a red flag (plus ACTUALLY liking cheese)

a red flag by cikennugets/yeetmeepp November 15, 2021

throw a red flag 

To challenge the ruling on the field, i.e. call someone out on something that you believe is bullshit.

Derived from the NFL practice of coaches throwing a red flag to request further review of a play and give the network a chance to show 2 more minutes of commercials.

person 1 - My bad on not helping you out, I was working all day yesterday...

person 2 - I'll throw a red flag on that, you told me three days ago that you don't work weekends...

person 1 - Well, yea but...nevermind...

throw a red flag by JJ3672 December 18, 2008