kvirc - 4:5.2.6-2 main

A highly configurable graphical IRC client with an MDI interface,
built-in scripting language, support for IRC DCC, drag & drop file
browsing, and much more. KVIrc uses the KDE widget set, can be extended
using its own scripting language, integrates with KDE, and supports
custom plugins.
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If you're looking for a simple and plain IRC client, KVIrc is probably the
wrong choice as it is rather big. But if you want a highly customizable client
you won't regret the installation.