be the last word
be the last word in (something)
To be the most modern or advanced version of something. It may not look like much, but I can assure you that this machine is the last word in neural imaging.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
be the last wordbe the most fashionable or up-to-date.
1989 Life Thanks to a built-in microchip, Teddy Ruxpin became the last word in talking dolls.
Farlex Partner Idioms Dictionary © Farlex 2017