“It hurt the way your tongue hurts after you accidentally staple it to the wall.”
Or maybe this one…
“She had a deep, throaty, genuine laugh, like that sound a dog makes just before it throws up.”
Courtesy of Sgt Grump and How not to write a metaphor
How exactly would one staple one’s tongue to the wall? That’d have to be awfully awkward. Just the picture of a person doing that has got me laughing.