cracking up

laughing mad hard. Almost to the point of crying. Laughing you split ends off. more than giggleing or laughing

Guy 1: hey, whats wrong wiff aly?

Guy 2: Oh we where talking about how disgusting Michelle's nose is and then she started cracking up

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man-up

to build up enough courage (usually for men) to face adversity and responsibility

When someone man-up its shows maturity and increases respect from society.

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knock up

1.(North America) V. To get Pregnant
2.(Great Britain) V. To wake up

"Billy go and knock up your sleppy head brother."

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bossed up

To be "bossed up" is to be in charge in a big way. To act like a boss.

Did you see Brett yelling at that guy? He was bossed up!

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Tearing It Up

To raise hell. To kick ass and take names.

Gary was tearing it up in high school.

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rock up

Actually means to arrive without any prior planning, or specific materials.

1. Do I need to make an appointment? Nah, just rock up.

2. Is there a dress code for Joe's party? Not sure, I'm just gonna rock up.

3. If I'm going to the USA, can I just rock up or do i need a visa?

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fix up

used to tell someone to improve their shit

person 1: i aint got that MC Pitman CD yet yer ner..
person 2: you need to fix up and get it, its a heavy CD

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