"Make one bed and lie on it" is an idiom that means to take responsibility for one's actions. Some synonyms for this idiom include "reap what you sow," "face the consequences," "live with the outcomes," and "own up to your choices." These alternative phrases all convey the same idea of being accountable for one's decisions and accepting the results of your actions. It is important to remember that every choice has a consequence, and it is up to us to take responsibility for them. So, no matter how difficult or unpleasant the outcome may be, it is essential to make our bed and lie on it.