The term 'BIG LUGS' is composed of four crossword solutions: OXES (4 letters), LOUTS (5 letters), OAFS (4 letters), and APES (4 letters). OXES is a plural noun referring to animals of the genus Bos, which are commonly used as draft animals. LOUTS is a verb meaning to behave in a rude or aggressive manner. OAFS is a plural noun referring to a clumsy or stupid person. Finally, APES is a plural noun referring to any of the large, tailless primates of the family Pongidae. Together, these words form the phrase 'BIG LUGS, ' which can be interpreted as a humorous description of someone who is both large and clumsy.