24 Expressions of Displeasure
(excluding outright swearing) 

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Alack
Alas
Blast
Bummer
Confound it
Curses
Dad blame it
Dag nab it
Dang
Darn
Dog gone
Drat
 Fiddle sticks
Fooey
Hang it all
Heck
Oh, fudge
Peanuts
Pitooey
Rats
Shoot
Shucks
Son of a gun
Tarnation