To reach an agreement or resolve (a dispute or argument, for example) by making a decision or coming to an agreement; to adopt a more steady or secure style of life, especially in a permanent job and home (settle down).
There may be other signs for different phrases or meanings in contexts other than this one.
Between the two handshapes, the line with the bar top indicates vertical horizon of the signer's perspective. That is, the palms face down. The mouth morpheme shows pursed lips. Image of the written symbol contributed by ASLwrite.