Sentence:  "D'ye hear, Richard? Now's your chance," repeated Ned, not to be done. "A very different thing this, I can tell you, from running round dosing people for the <WSD>collywobbles</WSD>. I know men who are raising the splosh any way they can to get in." 
Meaning of the word marked with <WSD> tags:  Stomachache or stomach upset. (From 1823)