1. old-fashioned To pilfer or steal (something) from an orchard, typically apples. Primarily heard in UK. I told you—if I caught you scrumping apples from Master Bishop's orchards again, I would have the bailiff take you away! I was so poor at one point that I only survived by scrumping apples as I traveled the countryside.

2. slang To have sex (with someone or each other). He garnered a bit of a reputation for himself with the way he's been scrumping all over town. There are rumors floating around that the boss is scrumping her new secretary.