under someone’s thumb

mod. under someone’s control. You can’t keep your kids under your thumb all their lives.

Name	Pronounced	Usage
MelÁNie	-	Czech
Dyson	DIE-sən	English (Rare)
Maxine	[mæk'si:n]
Nils	-	Swedish, Norwegian, Danish
Brandie	BRAN-dee	English
Watts	[wɔts]