slowcoach

[sloh-kohch] /ˈsloʊˌkoʊtʃ/
noun, Informal.
1.
a slowpoke.
Also, slow coach.
Origin
1830-40; slow + coach
British Dictionary definitions for slowcoach

slowcoach

/ˈsləʊˌkəʊtʃ/
noun
1.
(Brit, informal) a person who moves, acts, or works slowly US and Canadian equivalent slowpoke