Hang out To spend time with someone casually. Let's hang out at the mall this weekend.

Crash at To stay overnight at someone's place. Can I crash at your house tonight?

Freak out To become extremely anxious, scared, or upset. I totally freaked out when I saw the spider.

Pig out on To eat a lot of food quickly and without restraint. After the diet, I decided to pig out on pizza.

Chill out To relax or calm down. Just chill out and enjoy the movie.

Screw up To make a mistake or mess something up. I really screwed up the presentation today.

Bail on To cancel or abandon plans or commitments. He bailed on the party at the last minute.

Beef up To strengthen or improve something. I need to beef up my resume before applying for the job.

Go for To choose or select something. I think I'll go for the chicken instead of the fish.

Jack up To increase or raise something, usually prices or costs. They jacked up the price of the concert tickets.

Mess with To bother, interfere with, or play a trick on someone. Don't mess with him; he's in a bad mood.

Check out To look at or examine something. Let's check out that new store downtown.

Rip off To overcharge or cheat someone. That store totally ripped me off with their prices.

Bail out To leave a place quickly. I need to bail out of this party; it's boring.

Hit on To flirt with someone or make romantic advances. He was hitting on every girl at the club.

Screw around To engage in frivolous or irresponsible behavior. Stop screwing around and get to work.

Wig out To react or behave in an overly dramatic or irrational manner. She totally wigged out when she saw the spider.

Piggyback off To take advantage of someone else's work, ideas, or success for personal gain. He piggybacked off his colleague's research to publish his own paper.

Beef with To have a disagreement or conflict with someone. He has had a beef with his neighbor for months.

Screw over To deceive or betray someone for personal gain. He screwed me over by taking credit for my work.

Bum around To spend time idly or aimlessly. I spent the summer bumming around the beach.

Noodle around To think or ponder casually. I spent the afternoon just noodling around, lost in thought.