Kirtimukha (Sanskrit: कीर्तिमुख ,kīrtimukha, also kīrttimukha, a bahuvrihi compound translating to "glorious face") is the name of a swallowing fierce monster face with huge fangs, and gaping mouth, very common in the iconography of Hindu temple architecture in India and Southeast Asia, and often also found in Buddhist architecture.
The story of Kirtimukha begins when the asura king Jalandhara, who "by virtue of extraordinary austerities ... accumulated to himself irresistible powers.
"[2] In a burst of pride, he sent forth his messenger, the monster Rahu, whose main task is eclipsing the moon, to challenge Shiva.
"[3] Shiva's immediate answer was to explode a tremendous burst of power from his third eye, which created a horrendous, emaciated, ravenous lion.
As Zimmer writes, "Kirtimukha serves primarily as an apotropaic demon-mask, a gruesome, awe-inspiring guardian of the threshold.