A greeting to a friend who is leaving a party or social gathering when it's the first time you've seen them all night, even though you've both been at the same party the whole time.
Derek (appearing suddenly from other room): "It's getting late dudes, I gotta jet. Catch you later."
Jon: "Hey Derek! I didn't know you were here. Alright guy, what's-up-see-you-later."
The ability girls and women have developed to hold several items at once in one hand. The skill has been developed due to the lack of pockets in women's clothing.
I thought she'd need multiple trips to carry her phone, keys, wallet, and Starbucks to her car since she needed the other hand to open the door, but she used her impressive girl grip to carry everything in one hand.