As an aside, it is very interesting how many writers on Wittgenstein, and working in what we might broadly call Ordinary Language philosophy, achieve such a startling clarity. An early example (even before Wittgenstein) is also RG Collingwood. His writing is straightforward and clear as day, eschewing jargon for the language we use day to day, for that was ultimately their focus. They wanted to dissolve philosophical problems.
"A means something by x" is equivalent to "A intended the utterance of x to produce some effect in an audience by means of the recognition of this intention".
It may seem less than clear taken out of context, but there is a wonderful argument working toward the definition and once he finally presents it, it's a bit of a mic drop moment.
Also, he is one of the few philosophers whose work proved to be foundational in linguistics. Any book/course in pragmatics will talk about Grice's work on implicature and background knowledge.
This is humorous
Especially since you probably didn't want to step on his toes by breaking the silence while he still held the floor - he was, after all, forced to retire from schoolteaching after beating one of his slower math students unconscious.