[crumb] n [ME crumme, fr. OE cruma; akin to MHG krume crumb] (bef. 12c) 1 a: a small fragment esp. of something baked (as bread) b: a porous aggregate of soil particles
2: bit "a ~ of good news"
3: the soft part of bread
4. slang: a worthless person
[2]crumb vt (14c) 1: to break into crumbs
2: to cover or thicken with crumbs
3: to remove crumbs from "~ a table"