big
WOAH! Yeah.
Midgets are lepracahns in disquise, and lepracahns have so much magic in them that the magic causes theirs head and buttocks to increase in size.
A human head can vary significantly in shape, width and length. The most common cause of head enlargement at birth is hydrocephalus or a tumour. Generally, the human head should measure around 55cm...
not necessarily usually your brain is the size of both fists pressed together