Explain to your student why “he pissed her off” is OK but “he pissed off her” is not, while “he p.o.’d her” is OK but “he p’d her o” is not.
Explain to your student why “he pissed her off” is OK but “he pissed off her” is not, while “he p.o.’d her” is OK but “he p’d her o” is not.