Pseudo-Spanish for "deal", used to lend an air of urban-chic to an otherwise urbane sentence.

Popularized in a Missy Elliott song by the same name, the phrase "What the dealio?" is equivalent to "What's the deal?" or "What is up with this situation?"

Contraction of "deal" and "yo."

A common misspelling of the term "dilly, yo".

to inquire what is going on

What a Contracting Officer uses in place of "deal" when he is trying to be cool (read: decidedly uncool).