Srimad-Bhagavatam: Canto 3 - Chapter 1 - Verse 16
Sanskrit:
वायुनोत्क्रमतोत्तार: कफसंरुद्धनाडिक: ।कासश्वासकृतायास: कण्ठे घुरघुरायते ॥ १६ ॥
ITRANS:
vāyunotkramatottāraḥkapha-saṁruddha-nāḍikaḥkāsa-śvāsa-kṛtāyāsaḥkaṇṭhe ghura-ghurāyate
Translation:
In that diseased condition, one’s eyes bulge due to the pressure of air from within, and his glands become congested with mucus. He has difficulty breathing, and upon exhaling and inhaling he produces a sound like ghura-ghura, a rattling within the throat.