Holmes replies, "A lemon tree, Watson.."
Because he had lime disease
Lemon
I said, "I Excel at it." He replied, "Was that a Microsoft Office pun " I was like, "Word."
If I'm looking at my phone I now reply, 'No. I am not Twittering,' in a sort of flat monotone. And tweet.
Sherlock responds, "A lemon tree my dear Watson."
Sherlock, Holmes.
It's sedimentary my dear Watson!
A lemon tree, my dear Watson.