Valmiki Ramayana Sundara Kanda Sarga 47 Shloka 20

बालभावात् being young, युधि in battle, वीर्यदर्पितः puffed with the pride of his valour, प्रवृद्धमन्युः enraged, क्षतजोपमेक्षणः with bloodred eyes, सः he, रणे in fight, अप्रतिमम् matchless, कपिम् monkey, गजः elephant, तृणैः with grass, आवृतम् covered, महाकूपमिव like a huge pitfall, समाससाद rushed towards

Young Aksha, proud of his valour with eyes bloodshot in anger rushed towards the matchless Hanuman, just as an elephant would approach a huge pitfall covered with grass.