Come like a thunderclap and Pop up

Pop up and come like a thunderclap are semantically related. In some cases you can replace term "Pop up" with "Come like a thunderclap", this terms are similar.

Pop up verb - Appear suddenly or unexpectedly.

Come like a thunderclap and pop up are semantically related. Sometimes you can replace phrase "Come like a thunderclap" with "Pop up", this terms are similar.