It's possible. The overt phrase "we're having pizza tonight" could be literal except for the word "pizza" which may be a single bit (binary) code for something. The entire phrase could be a single binary code. Various other words or wordings could be binary code. For example "we're going to have pizza", "we're having pizza", "we will have pizza", "there will be pizza" are four phrasings which can carry two bits of information (the number 1, 2, 3, or 4). As you can tell, there's not a lot of bandwidth in such encodings.
But as an example, to get a latitude / longitude that can narrow a location down to a few feet you need 5 or 6 decimal digits or about 20 binary bits. So you need enough word salad in your email or ham radio message for the recipient to extract the 20 bits, decode it into a lat/long, punch it into their GPS and show up.