From Longman Dictionary of Contemporary Englishhot pantsˈhot pants noun [plural] DCCvery short tight women’s shorts
Examples from the Corpus
hot pants• For mock leather C&A waistcoats £21.99, jeans, £24.99, hot pants, £16.99.• She got hot pants for this guy twice her age.• This time I was making hot pants and rainbow striped jumpers.• Alexis's hot pants, £30; top £25, Juliette Spatchett at Hyper Hyper.• She has graduated from the brown velvet hot pants of her stockbroker days to Armani, Ralph and Prada.• Bikini bottoms look more like high-waisted hot pants, while swimsuits are squared off across the thighs or skirted. 