It is a situation in equestrian activities where the horse pushes away from the bit rather than leaning on it. This action is essential for proper balance and self-carriage, preventing the horse from putting too much weight on its front legs, which can lead to poor performance and potential injuries.

I found some potentially useful references that may help you understand common Dutch equestrian terms related to horse and bit interaction:

Article on Equestrian Training and Interaction:
A study published on PMC discusses the complexities of horse-rider interaction, which could provide insights into commonly used terminology in equestrian training, including how bits are used and how horses react to them.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8151029/

Research on Bit Use and Equine Welfare:
An article on ScienceDirect addresses bit use and its implications for rider safety and horse welfare, which could include terms and practices relevant to your query.
https://www.sciencedirect.com/science/article/pii/S016815912...

Qualitative Study on Perceptions of Equine Welfare:
This article explores various perceptions within the Dutch equestrian community regarding equine welfare, which might indirectly reference or relate to terms used in bit interaction.
https://rasayely-journals.com/index.php/ijes/article/view/11...