'WINTER melon' is the taunt which really pierces the skin of 14-year-old Ka-man, a form three student from Tai Po.
But, at 159 centimetres and 59 kilograms, she is upbeat this week because she has lost weight. Six months ago, at the age of 13, Ka-man weighed 64kg.
She wants to remain anonymous, but has come to her doctor's office to talk about the student lifestyle which is producing overweight, unhealthy kids.
'Chit kwa (Chinese cucumber), that's their name for me. They say my legs are like chit kwa,' Ka-man said.
'My older brother calls me 'big winter melon.' I hate it, but I keep silent because if people know I dislike it they will say it more often.
'If I don't respond, the other kids will not find it funny and they will stop.' Ka-man is overweight and has diabetes, but has managed to control the disease and her weight through fortnightly visits and encouragement from paediatricians at the Prince of Wales hospital, Sha Tin.
'Lots of kids at school are very fat; they're teased by their friends,' she said.