what does this mean "gro tet" and "ti tet"

gwo tèt → big head
ti tèt → big head


Some school children may be called gwo tèt if they being bullied.
Some peole may be called ti tèt if they have trouble learning or retaining what they learn.

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words