To contribute to a fund, esp to put what one owes into the pot of a card game (1940s+ Poker)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source
Idioms and Phrases with feed the kitty
feed the kitty
Contribute money to a pool or reserve, as in I can't make a big donation this year, but I'm willing to feed the kitty something. This term, originating in gambling, incorporates a pun, since kitty can mean “cat” as well as “pool.”
[ Late 1800s
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