LOL! This term made me laugh, but ironically, as you point out so well, there was not much for Lizzy to be pleasurable about.

CH 18 - "But **Elizabeth was not formed for ill-humour**; and though every prospect of her own was destroyed for the evening, it could not dwell long on her spirits; and having told all her griefs to Charlotte Lucas, whom she had not seen for a week, she was soon able to make a voluntary transition to the oddities of her cousin, and to point him out to her particular notice. The two first dances, however, brought a return of distress; they were **dances of mortification**. Mr. Collins, awkward and solemn, apologising instead of attending, and often moving wrong without being aware of it, gave her all the shame and misery which a disagreeable partner for a couple of dances can give. The moment of her release from him was exstacy."