Interestingly, when I type "tra" in my address bar, the two sites I use for text mangling are always on top - "Translation Party" and "Travesty Generator". Unfortunately, Translation Party doesn't make fun raws.
[ETHIC:KILL_ENGRASP:pulsation]
[trIBUTCHER] - Butchering with a trebuchet? Or just triple-butchering?
[USE_BOOTS_STONE] - Mafia at its finest.
[SPEC:SLUGMANOID] - I'm still waiting for Graboids, but this is rather close.
[USE_ANTS:COMMON] - That's nothing. Fear the civ that has [USE_BEES:COMMON]!
[TILE:CHRYST] - Going religious?
[CREASON:PUMPERCUSSING:gent, sourmaline:STP] - Okay, doesn't really make sense, but PUMPERCUSSING made me lol.
[SMELTINEER] - A pioneer of smelting?
[SMELTING:stal hunger bars] - Stal hunger bars. ("Stal'" is russian for "steel") Very dwarven food.
[SMALL_ACTION:ITEM_WEAVE_AS_EXILE:100:2:BAR:VIOLENT:1:7:0:7:1] - Remember "torture as exile"? This is probably worse.
[WEAPON_SWORD_FLESHWATER_SMALL_ACTIVE_SUCKLER] - It's a small, active flesh-water suckler sword. I'm not sure I want to be on either end of it.
[NAME:acornamen:slugmantom spiders] - Slugmantom spiders. Yuck.
[REACTIVE_SEASON:SPRING:PUNISH_DISSECTOR] - The poor dissectors have already taken their share of punishments in this thread.
[PERMIN_GROUNDERSWIMS_INTRUSIVE:CLUSTER_SMALL:NAME:perch:perch:punch:punch:perch:punch:punch:perch] - It's like you have a fish in one hand, and nothing in the other - punch, perch, perch, punch!
[SHIELD:ITEM_WEAPON_HAVE_ANIMAL_TROPHY_SAVAGE] - Using a weapon that's stuck in an animal as a shield. Impractical, but awesome.
[ETHIC:TORTURE_FOR_FUN:UNCOMMON_DOMESTIC] - Uh... BDSM?
[SOLID_DENSITY:EVIL:0] - How dense could it be if its density is described as "evil"? :0
[ATTACK_BRONZE_MAKING] - I suppose you attack a Colossus with it.
[VERMITTED_JOB:POTASH_MAKING:creepiness] - So THAT's what's wrong with potash making!
[PENETRATES_SHOES:ITEM_HELM:ITEM_WEAPON:ITEM_INSTRUCTION:ROSE_GOLD] - I know a lot of other things that penetrate shoes, but these are probably the most common.
[ENVIRONMENT_DRUM] - Ringworld?
[EXTRACTOR] - We require more Vespene Gas!
[liKES_SOCKS:COMMON] - I think this came up already, but it's worth repeating if it did.
[PANTS:ITEM_HELM_TURBAN:UNTOWARD] - Using pants as a turban is untoward, yes. The other way around is probably more uncomfortable though.