HC. when an argument breaks out between rebel alliance pilots and no one seems to want to yield, one of those involved might say, “throwing in your helmet?” basically, it means, “you think you’re right, you willing to bet it on a fight?” if the other accepts (typically with a simple “yeah, I’m throwing it in”) then both agree to settle it on the fighting mat. whoever wins the scuffle wins the argument and results cannot be contested.
* headcanon is based on discussions shared with @yellowthree.
zella and wedge probably started this tradition. ( and yes, zella won. )