not (one's) first rodeo(redirected from ain't your first rodeo)
not (one's) first rodeo
One is experienced with a certain situation, especially in relation to potential pitfalls or deceitful practices by others. Don't think I'll fall for that old trick. This isn't my first rodeo, you know. Hey, you're pretty good at that—it's clearly not your first rodeo.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.