Douglas Harper's Etymology Dictionary
Usage examples of "heart-throb".
I was presently to have this idea confirmed, for while I was striving with all my might and main to subdue my very heart-throbs so that she would not hear me or suspect my presence, the darknessI should rather say the blackness of the place yielded to a flash of lightningheat lightning, all glare and no soundand I caught an instantaneous vision of my father's figure standing with gleaming things about him, which affected me at the moment as supernatural, but which, in later years, I decided to have been weapons hanging on a wall.
Still crouched down, he looked at me from under the eyelashes that made him the heart-throb of the typing pool.