English Slang collection：

crumb bum

[释] someone who acts completely like a fool;

[例] Would you please stop being a crumb bum in public? Everybody's looking at us.;

crummy

[释] something really small and quite pathetic;

[例] The show in the bar last night was really crummy!

crunch numbers

[释] to do math, calculation;

[例] Accountants usually have to crunch plenty of numbers by the end of each year.;

crunch time

[释] a deadline/the last minute;

[例] It's getting pretty close to crunch time, better finish that report soon.

crunchy

[释] exhausted, not well;

[例] I think I need to see a doctor as I've been feeling crunchy since this morning.;

crunchy

[释] to feel embarrassed after having done or said something bad;

[例] I feel crunchy for yelling at Michael on the phone.

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