Basically the same as
eyeballin. To look at something with extreme interest.
Also, the act of eyeballing something is to measure or
weigh something without any tools.
(Not necessarily refering to anything illegal or
obscene)
"Dude! You see those chicks eyeballing your ride?"
"
Lemmie see. I'm eyeballing it. Looks like
4 1/2 feet from sofa
to wall....where's my tape measure? Yep, it'll fit!"