• āstṛta-āyāma — broad and extended
  Compound: āstṛta (spread out) + āyāma (length). The tongue is described as if it were architecture — a paved road. Bhāgavatam's interest in built scale recurs throughout (Hari's universal form, the demon's body, the Govardhana hill).
• rasanām — his tongue
  Tongue, but also taste (rasa). A pun — the demon's rasanā is part of how he plans to taste the boys; their rasa is to laugh and walk in. Same word, opposite directions.
• antaḥ-gatam — gone inside
  Compound: antaḥ (inside) + gata (gone). 'What has gone inside' — they are speaking already from inside the mouth. The verb form puts them in the demon's interior even as they discuss its anatomy.
• antaḥ-ānanam — the inside of his mouth
  Compound: antaḥ (inside) + ānana (mouth). 'Inside-mouth' as a single concept — the cavity. Where the Aghāsura-līlā literally takes place; chapter 14 will reveal a deeper antar-ānana (the universal form inside Kṛṣṇa's mouth).

• Am I asking Kṛṣṇa to make a dark situation light before I will engage it, or am I willing to enter it with Him?
• Where am I confusing avoidance with discernment?

Picture a public square paved smooth so that footsteps echo — and the boys hear their own voices coming back to them inside the demon's mouth. The echo is the warning; their interpretation is 'oh, the road is paved.' Vraja's reading is consistently the rasika reading: every threat is geography, every roar is hospitality.