Gugh
When the sigh ugh isn't enough. Sometimes you have to let out more than a typical ugh.
You're on the couch and your mom says "Can you go pick me up some milk?" All you can say is "Gugh!"
Gugh
When you're feeling devious or mysterious...
(Guuuuuhhh-Hugggghhh)
(Guuuuuhhh-Hugggghhh)
"gughhhh, Emily are you GUGHHHHHHHHH!"