手のひらの上
Expression- 1(in the) palm of someone's hand ; (under) someone's complete control ; (at) someone's mercy Translated by Jiyomi
Other writings and readings
掌の上手の平の上
expressions (phrases, clauses, etc.) · noun (common) (futsuumeishi)
Kanji · tap to open
JMdict entry 2869484. Source and licence.