Let ‧ ter ‧ man, David /ˈletəmən $ -tər-/ BrE AmE
(1947–) a US ↑ comedian and television ↑ presenter who has his own ↑ talk show (=a programme on which people are asked questions and talk about themselves) . He is known for having unusual people on his show, and for having humorous parts of the show such as ‘stupid pet tricks’ and ‘stupid human tricks’.