I like the cut of your Jib
It’s like saying you look good and might be a rival. People use it when they see someone who’s got the look and the attitude to take them on.
I like the cut of your jib, you’re gonna be my nemesis in this game.
He’s got the cut of my jib, he’s gonna take my spot on the team.
She’s got the cut of my jib, I bet she’s gonna beat me in the spelling bee.