Is fixt a real word?

I'm curious, is 'fixt' actually a legitimate word in the English language? I've come across it in a few contexts lately, but I'm not entirely sure if it's an accepted term or perhaps a typo. Could you shed some light on whether 'fixt' is a real word, and if so, what its meaning and usage might be? I'm eager to broaden my vocabulary and make sure I'm communicating effectively, so any clarification you can provide would be greatly appreciated.