Likely you mean the same Jain practice known by different spellings: Kausagg (Prakrit) or Kayotsarga (Sanskrit). Some people write Kavsagg by mistake. Here’s the simple meaning and use in Jainism:

• What it is: Kayotsarga means giving up attachment to the body — a meditative posture where the practitioner stays mentally detached from bodily sensations. It is often done standing, with the body calm and the mind focused on the soul. It is a key part of practices like Samayik, Pratikraman, Chaitya-vandan, and is described in classical Jain texts as a form of meditation and self-restraint. In short: it is not about renouncing the body, but about renouncing love for the body and turning inward to the soul.
• How it is done (brief): stand still with feet steady, arms relaxed, eyes downcast or closed, natural breathing, and attention on the soul or sacred sutras.
• Tradition note: The meaning and use are shared across Digambar and Śvetāmbar traditions, though exact phrasing and the sutras recited around kayotsarga can differ between the two.

If you want a concise, traditional wording and steps as used in practice, you can read more here: