noun
pudding head; hair with dark roots and blond ends
Colloquial term for hair that has been dyed blond but has grown out, revealing dark roots at the top, resembling a custard pudding. Often used humorously or critically.
彼女はプリン頭を気にして、帽子をかぶっていた。
She was self-conscious about her pudding head and wore a hat.
プリン頭になる前に、美容院に行ったほうがいいよ。
You should go to the salon before you get pudding head.