'Sorry! It's all right,' said Una, rubbing her nose. 'How many rabbits did you get today?'
'That's tellin's,' the old man grinned as he re-hoisted his faggot. 'I reckon Mus' Ridley he've got rheumatism along o' lyin' in the dik to see I didn't snap up any. Think o' that now!'
They laughed a good deal while he told them the tale.
This is from "The Tree of Justice" in "Rewars and Fairies" by Kipling.
I do not understand the meaning below.
'That's tellin's' "
Is this mean 'I have got many rabbits'?
I ma glad if somebody kindly teach me.