The term 'BLIND ___ BAT' is a crossword puzzle solution that can be completed with two four-letter words, ACRO and MICE. The first word, ACRO, is an abbreviation for acrobatics, which is a type of physical activity involving stunts and gymnastics. The second word, MICE, is a reference to the common mammal of the same name. Together, these two words form the phrase 'blind acrobat mice, ' which is a humorous play on the phrase 'blind as a bat.'