In just a few lines, Dave Bonta captures the strange stretch of a workday. The speaker says office time "is rope," and the metaphor works in a couple of ways at once. Rope is long, twisted and fibrous, much like hours that drag on and wind around you. It can also bind or hold you in place, and the poem hints that the day feels less like something you spend than something that restrains you.
The second stanza turns to language. "All the thin letters in my alphabet" suggests the words the speaker has available are slight, maybe worn down by routine, and they are used to "pretty it up." That could mean dressing up the dull reality of work in polite emails, reports, or small talk. The mood is wry and a little weary. There's no outburst, just a quiet recognition that the speaker is making something tedious look nicer than it feels, and perhaps knows it.