keep half an eye on (someone or something)(redirected from keeps half an eye on it)
keep half an eye on (someone or something)
To watch someone or something intermittently or half-heartedly while something else is happening. Unfortunately, I don't remember what that list said because I kept half an eye on the TV while mom was trying to show it to me.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.