A snailicide is for killing snails and slugs. Metaldehyde is a snailicide.

Between you and me and the bed-post – young master’s quarrelled with old master.

“Do you know the Poulterer’s, in the next street but one, at the corner?” Scrooge inquired. “I should hope I did,” replied the lad. “An intelligent boy!” said Scrooge. “A remarkable boy! Do you know whether they’ve sold the prize Turkey that was hanging up there?—Not the little prize Turkey: the big one?” […] “Go and buy it.” “Walk-er!” exclaimed the boy. “No, no,” said Scrooge, “I am in earnest. Go and buy it, and tell ’em to bring it here, that I may give them the direction where to take it. Come back with the man, and I’ll give you a shilling. Come back with him in less than five minutes and I’ll give you half-a-crown!”

It is obvious to everyone that Gerry adores Heather.