From Longman Dictionary of Contemporary Englishpear-shapedˈpear-shaped adjective 1 → go pear-shaped2 someone who is pear-shaped has wide hips and a fairly small chest
Examples from the Corpus
pear-shaped• Meg plays Alice, a cheerful hippy in the minutes before everything goes pear-shaped.• The new lands he discovered convinced him that the earth was not round but pear-shaped.• Bowman forced his fingers to hunt around, and presently discovered the pear-shaped bulb.• When ripe these pear-shaped fungi are filled with dust-like spores which pour out of the small central opening at the slightest movement.• From the low ceiling hung large, black metal frames with little pear-shaped leather bags and black metal pipes at right angles.• I pulled it free and found it to be sand-frosted and pear-shaped, like the one Nicky had shown me.• Outwardly, Donna, the classic pear-shaped woman, laughed about her legs, but finally she quit exercising. 