OVERBRIM Meaning of OVERBRIM in English | ̷ ̷ ̷ ̷| ̷ ̷ intransitive verb : to flow over the brim : overflowtransitive verb: to cause to flow over the brim ; also : to flow over the brim of Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012