To absent oneself or leave early from something (usually school or work) when one would normally be required to be there; to play truant. Primarily heard in UK. I was so restless and bored at work that I decided to just bunk it after lunch without telling anyone. Hey, Jim and I are planning on bunking from school on Friday, do you want to come with us? That's the last time you bunk class, mister! From now on, I'm dropping you to school every morning!
See also: bunk