A fanfic by Lightflame. It's an abridged series of Warrior Cats where everyone is nuts. It can be found here in all it's glory or here uncensored. The series focuses on the adventures of the clans, however insanity runs deep in clan blood.
Double Entendre: Tigerstar promises Leopardstar a large gift between his legs if she accepts his deal to form TigerClan... and pulls out an acorn. Anything involving Woody and beavers.
Erotic Dream: Thrushpelt and Leafpool have some of Bluefur and Crowfeather, respectively. Kestrelpaw tells Jaypaw that Jaypaw is in his dreams every night as asks Jaypaw if he wants to do it. Jaypaw (as Jay's Wing) apparently has a dream with Half Moon trying to mate with him.
Ho Yay: Ravenpaw and Barley, of course. Darkstripe for Tigerstar.
Insistent Terminology: In response to teasing being a medicine cat privledge, Featherwhisker replies that is the medicine cat apprentice.
I Warned You: Part of Whitestorm's dying words are "I told you so...", in response to talking as if he were going to die in an earlier conversation.
Karma Houdini: Invoked by Firestar saying he will completely ignore all the bad things Blackfoot did in the original series.
Bluefur: Well... there was that time when I woke up and saw him looking down at me panting... and all those times I caught him staring at my ass... and that time he sniffed me when he thought I wasn't looking... but how can we be sure he's been padding after me?
Firestar, as well.
Overly-Long Gag: Spottedleaf telling Jayfeather to accept his destiny as a medicine cat.
Spottedleaf: (after telling him three times and getting "no" each time) ACCEPT YOUR FREAKING DESTINY, YOU LITTLE RUNT!!!
Running Gag: Firestar asking someone if they're okay after they receive a horrible, if not fatal, injury. Firestar telling cats that he and Graystripe are not gay. Leafpool using "medicine cat... stuff..." as an excuse to run off.
Shout-Out: Summoning a bunch of warriors in one turn is against the rules, but screw the rules, Oakfur is a minor character. Jayfeather misinterprets Brokenstar as Breezepelt's Stand.