be lost without (someone or something)(redirected from be lost without one)
be lost without (someone or something)
To be unable to function or understand things clearly without someone or something; to be helpless without someone or something. Ever since Mom died, I just feel like I'm lost without her. When it comes to repairing things, I'm usually lost without instructional videos. I'd be lost without my assistant—she's the only one who keeps my crazy life remotely organized.