Depends what they're shouting for.
Geared for Titan usually means Ifrit's/Garuda's weapon and full DL. Many just go with AK drops, though, due to lack of finding full DL people.
Geared for WP means quite a few things:
1) If they are looking for geared players but do not specify speed runs, ask them first. Generally, 'geared' for WP just means relic weapon and DL gear
2) If they specify speed runs and are looking for a PLD, they probably expect you to have full DL + relic + AF2. I personally prefer warriors when healing and DPSing speed runs in WP.
There are two (kind of three) pulls in WP that usually test the strength of your healer, DPS, and tank.
A) The very first one where you pull all the way past the stairs in the beginning so you have 2x tonberries + 2x birds + beetles + the 3 way one which is tonberry/bird/something else..maybe pugil. This pull will determine if your group can do speedy speed runs or average speed runs. Your healer needs to be awake, your PLD needs to have a decent HP pool (obtained with full DL and relic), and your DPS need to do very high AoE damage without pulling threat.
B) The pull midway through where you grab the skeletons + ghosts + 2 tonberries. Also a very intense pull.
C) Sometimes, the pull at the end where you pull the 3 cluster + 2 tonberries. It's not too stressful if you've made it past the previous two mainly because you have AoE LB at your disposal if you need it for this one. I've found it to be more useful on this pull than on the actual boss.
It actually used to have 4 stressful pulls but people have quickly realized that if you kill the tonberry guarding the first door and sleep the rest of the mobs, you can run to the boss, engage him, and have the rest of the mobs be locked out negating any need to AoE down that pack.
This is why you will often see people shouting for BRDs or BLMs. BRDs are used to replenish the PLD's MP pool between huge pulls because they won't be able to keep up on threat if they can't flash (hence why I prefer warriors). BRDs also have decent AoE yet it cannot be sustained for very long: even with invigorate. They also amplify the BLM's DPS quite a bit during the pull with foe req. BLMs, on the other hand, can AoE until the mobs are dead or they are dead.
Generally speaking, if the BLM doesn't have quelling strikes, he's going to end up dead because 95% of PLDs I've come across have no idea how to use cover or that the ability even exists. Covering a BLM for 12 seconds usually is enough to kill the mobs but without 12 seconds of cover, the BLM will end up dead.
If you see "LF geared BLM/BRD" for WP, they generally want +1 relic, AF2, and DL gear. Can be done with just relic and full DL gear. Healers are generally given more leniency but a full relic and DL healer is preferred.
Speed running AK is still possible and about 5 minutes slower than WP. I would argue it requires more gear for the DPS because you want the bosses to die very quickly. You aren't doing AoE pulls so the PLD can pretty much be in full AK drops and maybe an Ifrit's weapon. Same with the healer. If the third boss isn't dead by the time the 2nd catastrophe hits, it's better to do WP speed running.
And there you have the translations for 'geared'.
http://www.ffxiah.com/player/Bismarck/Hitome FFXIV: ARR
Hitome Mehan - Midgardsormr
Hito Yu - Midgardsormr