Guard up

To raise your guard. To be on the lookout or ready for something or someone that may cause you harm either physically or psychologically.

He may be out to get you so guard up when you're alone.

redd up

to clean up, put everything away, put things in order, make things look nice

Very similar to the Swedish, reda upp, arrange things

'Company's coming, redd up the house!'

'Everyone's done eating, who wants to redd up the table!?'

cuttin' up

Straight up actin' a fool

"Deante was cuttin' up in class, girl."

sack up

A demand to be a man and to stop acting craven or cowardly. A derivation of man up (which in itself is a derivation of cowboy up), although more insulting. While man up can be used as encouragement to do something, sack up is almost always a challenge to cease doing something that should be beneath you

"Oh sweet mother of god! The terrorists are going to blow us up with Snapple bottles!" _This_ is terrorism's A-game? Sack up, people.

big up

it means to give respect or to acknowledge someone

big up yourself 4 me main man....

Glo-Up

A twist of the phrase "grow up", referring to a person's incredible transformation. This is usually based on increase of style and self-confidence (and potentially one's squad).

Noamee: "Remember that kid nerdy kid Loganus from High School?"
Mayana: "Yeah but have you seen him now?!?! GLO-UP!!!!"
Noamee: "I wish a nigga would"

glo-up glo up

hang up

To have or cause to have emotional difficulties or inhibitions

You have not been yourself today. What's your hang up?