* The loud music impinged on their conversation. (meaning: the music interfered with their conversation)
* The new regulations will impinge on the rights of small businesses. (meaning: the regulations will negatively affect the rights of small businesses)
* His constant negativity began to impinge on her mood. (meaning: his negativity started to have a negative impact on her mood)
* Her need for privacy was impinged upon by the paparazzi. (meaning: the paparazzi were violating her privacy)
Impinge usually means to have a negative or intrusive effect on something. It can be used in a variety of contexts, from physical impact to emotional influence.