WordNet (r) 3.0 (2006):

hot pants
    n 1: a state of sexual arousal [syn: horniness, hotness,
         hot pants]
    2: skin-tight very short pants worn by young women as an outer
       garment

Moby Thesaurus II by Grady Ward, 1.0:

36 Moby Thesaurus words for "hot pants":
   andromania, aphrodisia, biological urge, bodily appetite,
   carnal desire, concupiscence, desire, eromania, eroticism,
   eroticomaniac, erotism, erotomania, fleshly lust, furor uterinus,
   goatishness, gynecomania, horniness, hot blood, indecency,
   infantile sexuality, itch, lasciviousness, libidinousness, lust,
   lustfulness, nymphomania, passion, polymorphous perversity,
   prurience, pruriency, satyriasis, satyrism, sexual desire,
   sexual longing, sexual passion, venereal appetite