TLA

2. Any confusing acronym. Examples include MCA, FTP, SNA, CPU, MMU, SCCS, DMU, FPU, NNTP, TLA. People who like this looser usage argue that not all TLAs have three letters, just as not all four-letter words have four letters. One also hears of ‘ETLA’ (Extended Three-Letter Acronym, pronounced /ee tee el ay/) being used to describe four-letter acronyms; the terms ‘SFLA’ (Stupid Four-Letter Acronym), ‘LFLA’ (Longer Four Letter Acronym), and VLFLA (Very Long Five Letter Acronym) have also been reported. See also YABA.