"If Snape's teaching Defence Against the Dark Arts again, I'm skiving off"
- Ron (PA10)
He wanted to skip Divination to keep practicing, but Hermione refused point-blank to skive off Arithmancy...
- Harry, preparing for the first task (GF20)
"Do mine ears deceive me? Hogwarts prefects surely don't wish to skive off lessons?"
- Fred Weasley to Ron Weasley, first day back (OP12)
To avoid doing one’s task or duty; to “skive off” is to skip, as in skipping classes at school.