"(...) afford stuff for a good joke to anybody, (...)" - what does it mean?

meaning-in-context phrase-meaning uncountable-nouns
  • So, if any one man, in his own proper person, afford stuff for a good joke to anybody . . . let him cheerfully allow himself to spend and be spent in that way.*

afford stuff for = provide the material for

to spend and be spent = to be used

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