ace up sleeve

Secret winning move

An ace up one's sleeve is a secret advantage held in reserve.

The phrase comes from card cheating—literally hiding a winning card to play at a decisive moment.

Someone with an ace up their sleeve has an undisclosed resource or plan ready to deploy when needed: Just when we thought we'd won the negotiation, they revealed an ace up their sleeve.

Related

trump · trump card · advantage · secret weapon · gambit · surprise · cunning · sleight · cards · poker · poker face · bluff · play your cards · reserve · weapon · ploy · scheme · deceit

Categories
Opposites
fairness/honesty of play

ace up sleevefair play

Honorable conduct in games

above board · straight shooter · cards on the table · transparency · open hand

strategic preparedness

ace up sleeveempty-handed

Possessing nothing to show

up a creek without a paddle · dead in the water · backed into a corner · at a loss · shot one's bolt

strategic advantage

ace up sleeveAchilles heel

Singular fatal vulnerability

fatal flaw · weak spot · vulnerability · handicap · disadvantage

Family

aces, aced, sleeve, sleeves, sleeved, sleeveless

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Everyday, not technical · Rated G