shock effect
nounUK /ˈʃɒk ɪˌfekt/
US /ˈʃɑːk ɪˌfekt/
The big surprise feeling you get when something unexpected happens.
The loud thunder had a shock effect on the sleeping cat.
OTHER MEANINGS
2. The way a sudden event changes how people feel or act.
The shock effect of the news made everyone quiet.
3. A strong physical jolt, like from electricity.
The shock effect of the static made her hair stand up.
4. A dramatic result caused by something surprising.
The movie's twist had a real shock effect on the audience.