To suddenly begin crying, typically in response to overwhelming emotion, stress, or distress.
The verb 'burst' has been used metaphorically for sudden emotional releases since the 16th century, comparing the onset of crying to something breaking open under pressure. The phrase captures both the suddenness and the involuntary nature of emotional crying, suggesting that tears erupt when emotional pressure becomes too great to contain.
The 'bursting' metaphor is remarkably accurate - tears really do result from pressure, both emotional and physical, as the lacrimal glands respond to neurological signals triggered by intense feelings. The phrase also suggests the relief that often follows crying, much like how pressure is released when something actually bursts.
Complete word intelligence in one call. Free tier — 50 lookups/day.