Fiddlestick

"I responded with a polite fiddlestick when he suggested we take his idea to the boss."

"The broken shoelace was a fiddlestick, he tied it back together and kept walking."

"I'm not quite sure how to answer that question, um, fiddlestick, I'll come back to it later."

"He considered the typo in the email to be a fiddlestick and didn't bother to correct it."