It's an invented word, probably from the word 'Instagram', which was originally based on 'telegram'. A telegram was one of the first ways of sending a short but immediate message to some one - many years before the digital era. People occasionally invent similar words with the suffix 'gram' to mean something that you send someone. For example, a 'strippergram' is a service whereby you can send a 'stripper' (woman or man who takes their clothes off to entertain people) to a friend. Weird but true. Then, of course, you have 'Instagram' for sending pictures 'Smell-o-gram' is a message containing a smell. The 'o' part harks back to the 'Smell-o-Rama' and 'Smell-o-vision' movies of the mid-20th century. You make a delicious bowl of noodles, record the lovely smell on your phone, and send it your friends to make them feel hungry. Good idea, isn't it?

Hello, it means printing or recording.