pull the reins in on someone

Verb

 * 1) To restrict, curtail, curb.
 * 2) * 1966, Mike Nesmith, Different Drum, 1967, Linda Ronstadt (vocalist), The Stone Poneys, Different Drum (single),
 * Yes and I ain't sayin' you ain't pretty, / All I'm sayin's I'm not ready / For any person, place or thing / To try and pull the reins in on me.