Spill

1. To disclose a piece of information meant to be kept inclusive to a group.

2. To tell a secret.
3. Providing the entirety of a story that is otherwise unknown to the person requesting the “spill”.

4. A derivative of the term “spill the beans”, which also has the same meaning.

I heard you went out with Tom last night… Spill.
She is so thirsty, if we tell her she’ll immediately spill.

I’m gonna tell you something, and if you spill I will be super mad.

Thirsty

1. Overly desirable of attention or affection
2. Expressing the need or want for something to a point that is perceived as excessive
3. A pejoratively negative way of describing a person as so “needy” to the point of being offensive to others

She just signed up for drama club because she’s thirsty

Oh my look at Ric offering his jacket to Rachel, he’s so thirsty

I don’t tell that girl anything she’s so thirsty she’ll just spill.

Dealio

An informal and semi jocular way of sayinging the word “Deal” while removing the implied cutting harshness and seriousness of the phrase it is part of, also applying some levity to what otherwise may be perceived by the interlocutor as an overly aggressive, patronizing, Or inappropriately serious command or question.

For example “what’s the deal with the money I loaned you for lunch yesterday” could come across as petty, whereas “I bought you lunch yesterday, are you buying? what’s the dealio?” Would lend a light touch too an otherwise awkward conversation.

Are we going halfsies on a boat or not… What’s the dealio?

What’s the dealio with Jonathan’s haircut?

OK Tony, you can have my half of the sports book; let’s talk terms - what’s the dealio?