Meaning : A very small quantity of something.
Example :
He gave only a crumb of information about his plans.
There were few crumbs of comfort in the report.
Meaning : A person who is deemed to be despicable or contemptible.
Example :
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'.
Synonyms : bum, dirty dog, git, lowlife, puke, rat, rotter, scum bag, skunk, so-and-so, stinker, stinkpot
Meaning : Small piece of e.g. bread or cake.
Meaning : Coat with bread crumbs.
Example :
Crumb a cutlet.
Meaning : Break into crumbs.
Meaning : Remove crumbs from.
Example :
Crumb the table.