diff --git a/help/opers/snomask b/help/opers/snomask
index 09f28c4..fda4fe0 100644
--- a/help/opers/snomask
+++ b/help/opers/snomask
@@ -4,16 +4,16 @@ Server notice masks:
 
     SNOMASK     DESCRIPTION
 -----------------------------------------------------------------
-       +b     - Possible bot warnings
+       +b     - Possible spambot/flooder warnings
        +c     - Local client connections and exits
        +C     - Extended local client connections and exits
        +d     - Server debug messages
-       +f     - 'I-line is full' notices
+       +f     - Clients refused due to limits
        +k     - Server and service kill messages
        +n     - Local client nick changes
-       +r     - 'Rejected' client notices
+       +r     - Invalid usernames and dumb HTTP proxies
        +s     - Generic server messages and oper kills
-       +u     - Unauthorised client connections
+       +u     - Client connections without auth{} block
        +x     - New server introduction and split messages
        +y     - Juped channel join attempts, etc
-       +Z     - Operspy notices
+       +Z     - Operspy usage