Several good poker glossaries are available on the net:
Poker Terms is a comprehensive
and up-to-date dictionary of all the classic lingo plus the latest
online slang. Wondered what it means to "float" or "chop the
blinds"? Are you a "bumhunter" or a "lagtard"? This site will clear
the air.
Lee Jones' book "Winning Low-Limit Holdem" includes a glossary.
Dan Kimberg's book "Serious Poker" also includes a glossary.
Michael Wiesenberg's incredibly thorough "The
Official Dictionary of Poker" is online and is available in
print (MGI/Mike Caro University, ISBN: 1880069520).
Bob Ciaffone's "Robert's
Rules of Poker" includes a glossary at the very end of the
rulebook. This purpose of this glossary is to clarify the meaning
of the rules, rather than be a dictionary of poker terms, but it's
a useful reference.