捕风捉影

捕风捉影 [bǔ fēng zhuō yǐng]

1. ■ chase the wind and clutch at shadows -- make groundless accusations; bark up the wrong tree; be a mare's-nest; beat the air; catch [clutch] at shadows; catching the wind and grasping at the shadow; catch the winds and grasp the shadow -- invent a story; grasp at shadows -- to trump; make accusations on hearsay; make up a story; run after a shadow; speak or act on hearsay evidence