jar against something—
1. strike smth. with a harsh unpleasant sound:
- Her hands slapped on the floor, and her elbows jarred against the cement. “Liz!” Michael yelled, “Are you ok?”
2. not match smth.; be out of harmony with smth.:
- Their idealistic expectations of military service—travel, tuition and adventure—jarred against the harsh realities.
jar on something—(of a disagreeable sound) have an unpleasant effect on one’s nerves or ears:
- The noisy music jarred on my nerves, the sight of the gaping crowd round the platform irritated me.
jar with something— = jar against something 2:
- The “business as usual” tone of the early post-tsunami messages jarred with reality and the plight of many of the survivors.