I remember defying my parents when I grew my hair long. (Para. 11)
Meaning: I remember I rebelled against my parent by growing and keeping long hair.
defy: vt. rebel against; challenge
The child defied his parents and went to the cinema after school. 这小孩就是不听父母的话，放学后去看电影了。
He looked at me as if he was defying me to argue. 他盯着我看，好像想激我与他争论。