この表現は学校についてよく使いますね？ So "Because I'm a total delinquent, I skipped out on an entire week of school. Just because I felt like it." "Yesterday, I had a bit of a cold, so I played hooky." ("played hooky" is very colloquial) "I'm skipping school today because my little sister is sick and my mother is at work and someone has to stay home." "truant" is very formal, almost legally formal. I've only heard it used as a "truant officer" who makes sure that kids are in school.

Neglect.