What does "snuck off" mean? In what circumstances could I use it?

Native speaker’s answer
Rebecca
"Snuck off" means to have left stealthily to avoid attention or being noticed. "Snuck" is the past tense form. "Sneak off" is the base form of the phrasal verb. Ex: We'll sneak off during the speeches. No one will notice then. Ex: She snuck off to a party last night, so she's grounded.