The Curse Word Challenge

[Dennis]

Dennis Meredith is writing a science thriller, the Tasty Bomb [www.TastyBomb.com] in which an eccentric main character, having been reprimanded for her foul mouth, has decided to employ non-curse words in her vocabulary as substitutes. The "Curse word" Challenge: come up with words whose sound makes them satisfying curses in times of anger or frustration. Examples:
Fricassee!
Pork chop!
Chopstick!

[Te-ge]

Horse puckeys!
Horse feathers!
Shoot!
Foot!
Fig newton!

[Susan]

my friend Tanya said "schnit!" when driving her brother's car and it died in the middle of an intersection

an ex-roommate would say "fudge!" -- she's also the one who taught me "son of a biscuit-eater"