: an act of showing someone how something is used or done : demonstration. 1  I saw a demo on how to use the computer program. 2  The salesman gave us a demo of the vacuum cleaner, and it seemed to work very well. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples 3
If however, you are talking about some maggots in a bowl of wet food (either canned food or dry food which got wet or which you deliberately added fluid to) it is a different matter. Maggots come from flies eggs and they take some set period of time to hatch from the eggs.
Quick Answer. Maggots can get into carpet if food is left rotting on the carpet. Adult flies will lay their eggs in the food and maggots will emerge once the eggs hatch. Maggots only feed on dead or decomposing material so their source of food is often easy to locate by smell alone.