English Slang collection：
crumb bum
[釋] someone who acts completely like a fool;
[例] Would you please stop being a crumb bum in public? Everybody's looking at us.;
crummy
[釋] something really small and quite pathetic;
[例] The show in the bar last night was really crummy!
crunch numbers
[釋] to do math, calculation;
[例] Accountants usually have to crunch plenty of numbers by the end of each year.;
crunch time
[釋] a deadline/the last minute;
[例] It's getting pretty close to crunch time, better finish that report soon.
crunchy
[釋] exhausted, not well;
[例] I think I need to see a doctor as I've been feeling crunchy since this morning.;
crunchy
[釋] 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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