If you cant make a compromise to end an argument, you make a concession. It is when you offer your opponent something that they like at the cost of your opponent giving you something you like as well. Then you both agree to end the argument and the conflict is over.
Mutual concession is an act of giving up one's own possessions, interests, rights, comfort or stuffs like that just to fostercooperation among two or more persons and to sustain the already existing relationship. -Emeasoba George
A person of girth carrying armloads of giant drinks, buckets of well buttered popcorn, etc. from a movie theater concession stand. They can usually be seen lumbering through the lobby or fighting gravity on the slope of the theater aisle as they deliver their bounty to appreciative partakers.