wiseacre
"Timothy, are you.. okay?"
Bruce, out of concern —and definitely not of confusion— calls the teen instead or replying via text. He'd rather not add more to his confusion already.
After two rings, Tim answers his phone with hoarse voice, as if he had just woken up... Even if the text message was just less than an hour ago.
"Sorry, did I wake you?"
"I just dozed off after sending my message, why? What's wrong?"
"Ah no, everything's fine on my end. It's just... This message you last sent me. I'm a bit confused."
"Wha—? Oh, that. Why, what part didn't you get?"
"If I said the whole thing, would you hold it against me?"
"Of course I would!"
Then for almost a minute, Tim breaks into a fit of laughter, before coughing towards the end.
"Did you at least try to, ahem, crack the code?"
"Well, I did. Of course. It's just..."
"Didn't make any sense?"
"Yes."
"Ahh, Bruce, you old, wiseacre, you."
Another laughing fit, only this time, it sounded much fonder than the last one.
The following minutes, Tim explains the message to Bruce in the best of his skills, in between chuckles. Probably laughing at his own silliness.
Bruce ends the call around midnight, and sends Tim off back to sleep.
The teen bids the elder a good night, and promises of giving Bruce supplementary "lessons" about modern slang and emoji usage the next time Tim drops by the manor.