bug (bug) n. 1. a true bug 2. an insect or similar organism, such as a centipede or an earwig.   worm (wûrm) n. Any of various crawling insect larvae, such as a grub or a caterpillar, having a soft elongated body.   bug & worm (bug and wûrm) n. A pointless digital comic about a true bug and inch worm and their hilarious hijinks.   paddy Bug's platypus assistant, and his biggest fan.   the sheep A group of tiny sheep that escaped from a lab down the road by running under the door. One of them is the drummer in the band.   grasshopper The bassist in the band.