When one straight person makes a questionable homosexual comment or gesture to another straight person. Just like in football when a flag is thrown indicating a penalty.
Peter: What was up with Bjorn grabbing your junk earlier tonight?
John: Yea, that was a total rainbow flag on the play.
John: Yea, that was a total rainbow flag on the play.
by vAnCiTyCaNaDa March 23, 2009
Get the Rainbow flag on the playmug.