would/could kill for (something)
A hyperbolic expression of one's intense desire to have or do something. Man, I could kill for some of my mom's homemade spaghetti right about now. I'm so jealous—I'd kill for a chance to go to Brazil for a month!
kill for something
Sl. to be willing to go to extremes to get something that one really wants or needs. (An exaggeration.) I could kill for a cold beer.
See also: kill