An insignificant amount of money. Usally around $1,000 USD.
Nancy received crumbs as a bonus from her employer, which she used to buy an iPhone X.
Crumb is a meaning of saying someone's a fucking idiot or retarded
Claude: You're an idiot!
Jacob: You're a crumb I don't want to hear it
Someone who is 100% punk, shows imagined strength by standing over and harrassing females
That Thierry is a dead set crumb
a person who is uneducated or just stupid, or does something stupid,
a nickname for Dylan’s current boy toy
dylan: hey I’m going to hang out with Crumb
mckenna: have fun!