Old-timey oath

"Phoo!"

"Dagnabbit!"

Kin of "shucks"

"Phooey!"

"The heck with you!"

"The hell with it!"

"___ to you!"

"Nonsense!"

"Hogwash!"

"Horsefeathers!"

"Doggone!"

"Drat!"

"Darn!"

"Shoot!"

"The heck with it"

"Darn it!"

"Dang it!"

Quaint complaint

"Cheese and rice!"

"Rats!"

Wiktionary Word definitions in Wiktionary
a. (context slang euphemistic English) Crazy; nuts. interj. (context slang euphemistic English) nuts! Expression of dismay.