"Beggars can't be choosers" is a common idiom used to imply that someone who is in a position of need or desperation has no right to be selective about what they are given. Some synonyms for this idiom include "take what you can get", "grin and bear it", "make do with what you have", and "accept what's offered". These phrases convey the same message as "Beggars can't be choosers" and are often used to remind someone struggling to accept any help they can get, even if it's not exactly what they were hoping for. In times of adversity, it's important to remember that sometimes we simply have to accept what we can and make the best of the situation.