Expressions (phrases, clauses, etc.), Godan verb with 'ru' ending
to depend on one's parents' (financial) support; to gnaw at one's parents' shins
Idiomatic expression
彼はまだ親のすねをかじっている。He's still sponging off his parents.
Also written 親の脛を齧る【おやのすねをかじる】、親の臑を噛る【おやのすねをかじる】