Silent disco
Definition: A party where people listen to music through headphones
Example: I can't believe they call this a silent disco.

Disco
Definition: A style of dance music from the 1970s
Example: I was raised on disco.

Hustle
Definition: A dance popular during the disco era
Example: Little Terry loved to hustle.

Giggle
Definition: Slang for a party drug (ecstasy)
Example: Giggle dehydrates the hell out of you.

Dehydrates
Definition: Removes water from your body
Example: Giggle dehydrates the hell out of you.

Vintage
Definition: Old-fashioned in a stylish or valuable way
Example: Did you get that from a vintage store or something?

On the house
Definition: Given for free
Example: Have a water on the house.

Useless
Definition: Not helpful or effective
Example: "Well, she was useless."

On the right track
Definition: Doing things correctly or making good progress
Example: My babies are on the right track.

Sub-par
Definition: Below the expected standard
Example: Who went to sub-par preschool?