letch n man with strong sexual desires Usage(s) Day or night, a man with a thirst or a letch or the urge to gamble could satisfy his cravings with ease. The landlady (Betty Field) has a letch for him, and her husband (Ray Fry) treats him as a son. Two of the bad guys (Jack Warden and Bo Hopkins) naturally have a fierce letch for her. Synonym(s) satyr lecher lech