nothing up my sleeve
- magicSupernatural or illusory power
- trickDeliberate deception
- sleightDexterous trickery
- honestFree from deception
- transparentAllowing light through
genuine · cards · hidden · concealed · reveal · illusion · deception · trustworthy · magician · wand · secret · shuffle · deck · innocent · aboveboard · clean · empty · proof
concealment/deception
nothing up my sleevehidden agenda
Undisclosed true purpose
ulterior motive · trick up one's sleeve · up to something · ace up one's sleeve · pulling strings
preparedness/planning
nothing up my sleeveace in the hole
Secret decisive advantage
secret weapon · trump card · backup plan · stacked deck · holding all the cards