Engorgio Skullus is a Hex. This spell is used to swell the victim's skull. This may be a variation of the Engorgement Charm, Engorgio, where the word Skullus confers specificity to the spell, hence limiting its shrinking effects to the head of the target. The counter-spell to shrink the victim's head is Redactum Skullus.
- This hex might have been used by James Potter and Sirius Black against Bertram Aubrey to inflate his head to twice the normal size.
- The word engorge means "to fill to excess".
- The word skullus is probably an adaptation of the English noun skull.
- Harry Potter and the Half-Blood Prince (Possibly indirectly mentioned)
- LEGO Harry Potter: Years 1-4 (First appearance)
- LEGO Harry Potter: Years 5-7