mergadoodle
This word, created by Teni Amos, can and should be used to replace ugh and all other words corresponding to ugh.
Crap! I didn't study.... Mergadoodle!
Mergadoodle
A slang term meaning "ugh" or "oh s**t"
Lydia: "Did you do your term paper last night Teni?"
Teni: "OH MERGADOODLE"
Teni: "OH MERGADOODLE"