APARTMENTS TO LET, phr. (common).—1.  Empty-headed; foolish; crazy: see BALMY.

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  2.  (old).—Said of a widow; also of a woman given to prostitution: e.g., ‘She lets out her fore room and lies backward’ (RAY and GROSE).

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  1809.  MALKIN, Gil Blas [ROUTLEDGE], 191. A theatrical lady … may change her lover as often as her petticoat … and … rivals came back in crowds … ready to bargain on the mere report of my being TO LET.

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