To notice and/or show a particular interest in something - usually a hot guy/girl, but can also be a meal or anything really.
Dan, check that girl out by the bar, she is totally eyeing you up dude.
Tom's order took so long to get, I caught the fat bastard eyeing up my Big Mac a few times.
Tom's order took so long to get, I caught the fat bastard eyeing up my Big Mac a few times.
by Synapse000000000666 June 20, 2007
 Get the eyeing upmug.
Get the eyeing upmug. by Erick Freeze December 28, 2013
 Get the eye upmug.
Get the eye upmug. by Blex Aainesy April 3, 2017
 Get the ey upmug.
Get the ey upmug. what a friend/girl tells you when your looking at a girls ass or tits instead of your friend or her eyes
by akdieloe September 13, 2010
 Get the eyes upmug.
Get the eyes upmug. Used in typical conversation:
Emma: "Ey up duck, ows yer ma?" (Hello, how is your mother?)
Lee: "Shes alreet" (She is doing well)
Emma: "Ey up duck, ows yer ma?" (Hello, how is your mother?)
Lee: "Shes alreet" (She is doing well)
by JB40k April 3, 2008
 Get the Ey up duckmug.
Get the Ey up duckmug. And "trust" is a word you seldom hear from us
Hustlers we don't sleep we rest one eye up
-Jay Z, "December 4th"
Hustlers we don't sleep we rest one eye up
-Jay Z, "December 4th"
by mjsgdjkabskjfbj May 7, 2009
 Get the One Eye Upmug.
Get the One Eye Upmug. 