Family member invites one cutting meat

• Meat on the bone, perhaps in barbecue sauce
• A cut of pork ribs with much of the meat trimmed off
• Pupu-platter piece
• Cookout treat
• Part of a restaurant rack
• Meat on the bone served in barbecue sauce
• Adam's contribution?

WordNet Word definitions in WordNet
n. a cut of pork ribs with much of the meat trimmed off

Wiktionary Word definitions in Wiktionary
n. A cut of meat including the rib bones.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Sparerib \Spare"rib`\, n. [Spare, + ri ] A piece of pork, consisting or ribs with little flesh on them.