Did she have any grass that needed cutting? (with a scythe?)
Yes he's going to do it for her tomorrow as his scythe was a bit blunt and needs sharpening, he's working on it
I have double entendres coming out of my oreilles here 
Can't decide if you two are talking in some pervy in-joke style of conversation or if I am the one with the filthy mind?!
I also keep thinking of Poldark as pole in the dark 