Bunk off school
Definition 1 of 1
Pro Tip 1/3UK Slang
Understand 'bunk off school' is mainly British slang, less common in other English-speaking countries. 
She was puzzled by 'bunk off school' until she learned it's a British term.
Pro Tip 2/3Negative Connotation
'Bunk off school' often has a negative connotation, implying mischief or defiance. 
He developed a reputation for bunking off school.
Pro Tip 3/3Parental Disapproval
Using 'bunk off school' can suggest expected disapproval, especially from parents or teachers. 
She knew her parents would be furious if they learned she bunked off school.