ETYM Originally, a sniff, sniffing.
A quarrel, usually of short duration.

Acronym for Tagged Image File Format or Tag Image File Format. A standard file format commonly used for scanning, storage, and interchange of gray-scale graphic images. TIFF may be the only format available for older programs (such as older versions of MacPaint), but most modern programs are able to save images in a variety of other formats, such as GIF or JPEG. See also gray scale. Compare GIF, JPEG.
(acronym for tagged image file format) A graphics file format.

To have a petty quarrel