"You have a big head."
Translation:Tha ceann mòr ort.
From the tips https://www.duome.eu/tips/en/gd, ''Your head and your hair are on you Tha falt donn ort. - You have hair. Tha ceann mòr ort. - You have a big head. Using agam in this instance would imply that you have come into possession of a hair or a head! Using agam is perfectly normal with most other body parts though: Tha beul mòr agam! - I have a big mouth!''