prick your conscience

prick (one's) conscience

To cause someone niggling feelings of guilt or remorse. It pricked my conscience to see my brother being led away in handcuffs, but I know it was the right thing to call the cops on him. Their promotional material is carefully crafted to prick the conscience of anyone who picks it up.
See also: conscience, prick

prick your ˈconscience

,

your ˈconscience pricks you

make you feel guilty about something; feel guilty about something: Her conscience pricked her as she lied to her sister.
See also: conscience, prick