Muggles' Guide to Harry Potter/Magic/Engorgio

Overview
Engorgio is a spell that enlarges an object. It means 'To Fill In'.

Extended Description
The Engorgio charm is used to make things larger; it is possible, though not certain, that it is the same as the Engorgement Charm that Hagrid is using on his pumpkins in Harry Potter and the Chamber of Secrets. The first place we see it for certain is when Professor Moody uses it to enlarge a spider so that the entire class can see the effect one of the Unforgivable Curses has on it.