Noun
1. a very small quantity of something;
"he gave only a crumb of information about his plans""there were few crumbs of comfort in the report"2. a person who is deemed to be despicable or contemptible;
"only a rotter would do that""kill the rat""throw the bum out""you cowardly little pukes!""the British call a contemptible person a `git'"3. small piece of e.g. bread or cake