What is another word for ace one sleeve?
Pronunciation: [ˈe͡ɪs wˈɒn slˈiːv] (IPA) 
The phrase "ace one sleeve" is quite specific and usually refers to a person who is skilled in a particular area that they keep mostly hidden or subdued. Some synonyms for this phrase include "a hidden talent," "a secret weapon," or "a trump card." Other words that carry similar connotations include "masterstroke," "sneaky trick," or "sly tactic." These words all evoke a sense of something powerful or impressive being held back for just the right moment. It's often used in a context of strategy, where someone is waiting for the perfect time to use their best skills and abilities.
