get a life

do something useful with your time!, go meet some friends and develop some outside interests!

"Get a life" is an originally American idiom and catch phrase usually intended as a taunt. The phrase appeared as a generally more emphatic variant of the taunt "get a job" and implies the addressee needs to go out and make their way in the world, without being supported by outside sources such as parents or benefactors. It may also be directed at someone who is perceived as boring or single-minded; suggesting they acquire some other, more practical interests or hobbies and get dates, find a job, or move to their own house.
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<abuse> Standard way of suggesting that someone has succumbed to terminal geekdom. Often heard on Usenet, especially as a way of suggesting that the target is taking some obscure issue of theology too seriously. This exhortation was popularised by William Shatner on a "Saturday Night Live" episode in a speech that ended "Get a *life*!", but some respondents believe it to have been in use before then. It was certainly in wide use among hackers for at least five years before achieving mainstream currency in early 1992.
[Jargon File]
(1995-01-18)

change your lifestyle, get it together, get with it He never goes out - just stays at home and watches TV. I wish he would get a life!