I used Gorilla Glue on the wrong thing (something that couldn't be cramped tight) a while back and found the stuff expanded like polyurethane foam.

I have found the wedge shape of toothpicks allows you endless scope for infill jobs like this - from worn-out screw-holes as above to small splits and cracks (shave to fit). The ones sold by Boots the Chemist in the UK are made of beech, less likely to compress in use than slivers of pine or other softwood; but for adhesive the stuff that's sold as wood-glue (usually PVA) would be my choice. Any old repair material should be cleaned out first.

Ross