The expression can be traced back to horse racing in the 1700s when goats were used to settle the horses. A young goat. An idiom is a turn of phrase that doesn't make sense when literally translated.
Description: GTF file is a General Feature Format File. The Gene transfer format (GTF) is a file format used to hold information about gene structure. It is a tab-delimited text format based on the general feature format (GFF), but contains some additional conventions specific to gene information.
Graphics Interchange Format. GIFs are image files that are compressed to reduce transfer time. The proper pronounciation of the acronym is a soft g sound: like JIF. The creators of the format, Bob Berry & Steve Wilhite, claim that this soft g sound is used. At some point one of them said, Choosy programmers choose GIF, a play on the peanut butter commercials where Choosy moms choose Jif..