The term BIG OAF is composed of six words, each with a different number of letters. The first word is LOUT, which is a four-letter word meaning an uncouth or boorish person. The second word is APE, which is a three-letter word meaning to imitate or mimic someone or something. The third word is LUG, which is also a three-letter word meaning to carry or drag something with effort. The fourth word is PALOOKA, which is a seven-letter word meaning a clumsy or unskilled boxer. The fifth word is GALOOT, which is a six-letter word meaning an awkward or clumsy person. Finally, the sixth word is CLOD, which is a four-letter word meaning a lump of earth or clay. Together, these words form the term BIG OAF, which is used to describe a large, clumsy, and uncouth person.