おくのてをつか
Meanings
Expression
Verb (5-dan, う)
Idiomatic
1. to play one's trump card
Composed of
ace up one's sleeve; trump card; secret skills; secret; (arch.) left hand
to use (a thing, method, etc.); to make use of; to use (a person, animal, puppet, etc.); to employ; to use (time, money, etc.); to spend