Fondleslab, often hyphenated as fondle-slab, is a highly idiomatic slang term for a device that holds a powerful attraction for a user or set of users. Here, the word "slab" refers to devices that are often wide and rectangular in form, such as tablet computers.
Techopedia explains Fondleslab
Although fondleslab is a term that many in IT think of as extremely informal and not appropriate for business use, it does pop up in modern journalism, often in a discussion of market imperatives. For example, a writer might say that tech vendors must come up with a "fondleslab" in order to revive a lagging device market.
As a descriptive term for devices, the word fondleslab also reveals a little about the evolution of new mobile technologies to date. While the most popular devices of recent years, such as the iPod, iPhone, iPad, Blackberry and others, have largely been rectangular, there’s good reason to believe that this will change in the future as newer technologies, such as Google glasses, opt for a less cumbersome approach.