What does the anal gland discharge look like?
Can it be kind of "goopy" (like clear snot) and/or have a yellow tint to it?

Does it smell like "butt"?

We were sitting on the couch watching NCIS when Abby got up and twirled herself around and I felt a wet spot on the couch and noticed another one that she started licking at. They stunk horribly!

I looked to see where it came from and I couldn't tell. Neither "part" looks infected, irritated, or anything else.

Should I call her vet tomorrow? She's acting fine, and has been fine all day today. Though she did seem uneasy right after this happened.

It got on my arm and on my leg, I've already taken a shower and it still smells . I read online that alcohol will help remove the smell so I'm going to try that. Luckily we had a couch cover on and that's in the washer now. Her "area" still smells too.

And no, she hasn't been scooting, licking her butt incessantly, she is spayed and hasn't had any symptoms of a UTI.