The phrase "short bit" can be replaced with a variety of synonyms to add interest to your language. Words like "brief spell," "short stint," or "quick moment" can all be used to convey the idea of something that lasts only a short amount of time. Other options include "momentary lapse," "fleeting instant," or "transient period." Additionally, you could use more colorful language like "flicker of time," "a flash in the pan," or "a whisper of a moment." No matter what synonym you choose, using descriptive language can help elevate your writing and grab your reader's attention.