diff --git a/plugins/mock.py b/plugins/mock.py
new file mode 100644
index 000000000..a96636d87
--- /dev/null
+++ b/plugins/mock.py
@@ -0,0 +1,28 @@
+from cloudbot import hook
+
+
+def get_latest_line(conn, chan, nick):
+    for name, _, msg in reversed(conn.history[chan.casefold()]):
+        if nick.casefold() == name.casefold():
+            return msg
+
+    return None
+
+
+@hook.command
+def mock(text, chan, conn, message):
+    """<nick> - turn <user>'s last message in to aLtErNaTiNg cApS"""
+    nick = text.strip()
+    line = get_latest_line(conn, chan, nick)
+    if line is None:
+        return "Nothing found in recent history for {}".format(nick)
+
+    if line.startswith("\x01ACTION"):
+        fmt = "* {nick} {msg}"
+        line = line[8:].strip(' \x01')
+    else:
+        fmt = "<{nick}> {msg}"
+
+    # Return the message in aLtErNaTiNg cApS
+    line = "".join(c.upper() if i & 1 else c.lower() for i, c in enumerate(line))
+    message(fmt.format(nick=nick, msg=line))