with (one's) dick in (one's) hands

with (one's) dick in (one's) hands

vulgar slang Describing one whose secret has been revealed or who has been caught doing something one wanted to keep hidden. "Dick" is a slang term for "penis." Boy, that politician totally got caught with his dick in his hands when the surveillance footage showed him stealing money.
See also: dick, hand
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.