Mahabharata 1.52.9

मुद्गरः शशरोमा च सुमना वेगवाहनःएते तक्षकजा नागाः प्रविष्टा हव्यवाहनम्

mudgaraḥ śaśaromā ca sumanā vegavāhanaḥete takṣakajā nāgāḥ praviṣṭā havyavāhanam

Our plain-language meaning of this verse is waiting for scholar review.