Throws into the mix is an idiom that means to add something unexpected or unplanned to a situation. It is often used to describe adding an element of surprise or excitement to a conversation or activity. The crossword solution for this term is ADDS, which is a four-letter verb meaning to contribute or supply something to a larger whole. Therefore, the phrase 'throws into the mix' can be interpreted as adding something to a situation in order to make it more interesting or exciting.