subs. phr. (colloquial).A four-post bedstead.
1836. DICKENS, Pickwick Papers, ch. xliv. Vill you allow me to en-quire vy you make up your bed under that ere deal table? said Sam. Cause I was alvays used to a FOUR-POSTER afore I came here, and I find the legs of the table answer just as well, replied the cobbler.