Wiktionary
vb. to overflow over the brim (of a saucepan etc.)
WordNet
Usage examples of "brim over".
She let them brim over, and the water meandered down her cheeks in leaky rivulets.
Riding over the Cogstone ridge they paused to overlook the wide view which suddenly spread before them: the Cambermouth extending in a sinuous curve to the west where it seemed to brim over the horizon.
He flushed and found it difficult to swallow, and his eyes threatened to brim over with tears.
Presence of the crowd made it simple for Slick to snap his bat brim over his eyes and mingle among them.
Using blades of grass and twigs from the lawn as shims, she finally got the bowl exactly level and perfectly full, so that the water in the basin was poised to brim over, held in place all the way around by surface tension alone.