| Idiom |
Where Used |
Meaning |
|---|
| (the) X factor |
Global |
Unknown and/or unforeseeable circumstances |
| X marks the spot |
Global |
Used in locating something |
| for XYZ reasons |
USA |
For reasons unknown and not worth speculating on. |
| XYZ |
USA |
Examine your zipper. This expression is a slang rough acronym (initialism). The X stands for the sound of the "ex" in examine resembling the phonetic sound for the letter X in the English alphabet. The other components, the Y and Z are accurate as Y is the first letter of "your" and Z is the first letter of "zipper." (This refers to one finding embarrasment that they have forgetten to zip up their trousers.) |