Sentence:  She was a fat, round little woman, richly apparelled in velvet and lace, […]; and the way she laughed, cackling like a hen, the way she talked to the waiters and the maid, […]&mdash;all these unexpected phenomena impelled one to hysterical mirth, and made one class her with such immortally <WSD>ludicrous</WSD> types as Ally Sloper, the Widow Twankey, or Miss Moucher. 
Meaning of the word marked with <WSD> tags:  Amusing by being plainly incongruous or absurd.