An alternate spelling of brimful; completely full, filled to the brim.
A variant spelling of 'brimful' with doubled final 'l,' following an older or more emphatic spelling convention that was common before modern standardization.
The spelling 'brimfull' with the doubled 'l' was actually quite common in older English, and some people still insist it's more correct—it shows how spelling standards were argued about for centuries before dictionaries finally standardized them.
Complete word intelligence in one call. Free tier — 50 lookups/day.