slowcoach meaning (informal): definition

slowcoach

noun

Etymology From slow + coach.

Ireland, UK, Informal A person, especially a child, who moves slowly.

Hey, you slowcoaches at the back! Get a move on!
They were both very quiet, respectable people; one of them paid the bill and went out; the other, who seemed a slower coach altogether, was some minutes longer getting his things together.1911, Chesterton, The Innocence of Father Brown, The Blue Cross

Ireland, UK, Informal A person who is slow on the uptake; one who does not comprehend new ideas quickly.