I consider myself to be a Poppy one trick, so I can help you with the Teemo vs Poppy match up.
Teemo is the weakest he has been in while (he didn't need the nerfs imo but that's another topic) so you can beat him rather easily.
If you just follow a few tips you can either crush Teemo, or at least have reasonable creep score and therefore auto win the teamfights later (mostly).
is great on Poppy
I think this is completely useless (in this matchup) but take it if you want to
I always buy
vs
instead of
because that's what works for me personally, but both are viable.
Only fight
if you can pick up your passive shield, and only hit
with your passive if his Q blind is on cooldown to ensure it lands. If you hit the passive and get the shield, (AS LONG AS THE CREEP WAVE ISN'T TOO LARGE), you can just walk up to him and auto q auto, then e away to a minion if you haven't used it already, however w and run into a bush is just as good.
If you take
trade as much as possible level 1 as the passive buff means you can do an insane amount of damage with the
, don't let
push you into the tower as farming under tower with
is incredibly difficult so its preferable to freeze and ping your jungle for ganks. If you want to get a lead you have to act early preferably before level 6, trading like above to get him to 50% hp, then you can easily flash for a wall stun and delete him easily.
If the
player sucks, you can build any items that work on Poppy (within reason) and just run him down. If I get a lead ---->
then
into
NEVER BUY
ON POPPY EVER (unless you have a
on your team). Buy as many control wards as you can, as well as sweepers, make sure to sweep the river before asking for ganks. If the river hasn't been swept don't ask for ganks unless you have seen
not move outside the lane for five minutes. If you get ahead vs
you can out trade him especially with
or
and just e stun him under tower and blow him up.
If you have Aftershock, you can win trades easily like this, wait till
wastes his q on a minion, passive auto attack him, e into him (into a wall preferably) get the aftershock shield, auto, q, auto, w and run into the bush.
If you use Grasp of the Undying you can trade in a similar way as with aftershock, just wait for his q to be on cooldown, and for your Grasp and passive to be up.
If you have Summon Aery you can trade in the same way as Aftershock, however an extra auto attack will send Aery again in most cases,
If you go to trade don't forget       
If you are losing vs
there are a few things you can do so survive the lane and keep a decent creep score. Using your abilities early to ensure you get cs, then backing early with a
or
depending on how it goes, can make his poke much more manageable. Try to always hit
with your passive (use that buff riot gave us :)) but try to not to miss farm.
If
is aggressive, only walk up to cs with your passive shield active, the healing from second wind, and damage reduction from bone plating will basically be a god send for you and get you so much farm. Many Poppy mains buy
in order to cs more effectively under tower however I don't but you can try to see if it helps.
Build vs
-------->
,
(if you get pushed out),
(if you don't get pushed out early), into
(finish this as fast as possible), then normal build after
,
,
then situational items afterwards
.
VS TEEMO ALWAYS TAKE NULIFYING ORB!
I personally do not like
and
on
but you are welcome to try them out and see how they work for you.
Ganking 
If you ask for ganks make sure you sweep the river, or at least put a pink in the tri brush or river brush (depending on what side you are on);
If your jungle is pathing to come and gank you, bait out
w "Move Quick", it has a long cooldown and he is free gold if you gank a Teemo without it
love bushes,
loves bushes because they are all next to walls, a scared Teemo will run straight to the bush and you can e him for a free kill.
My final piece of advice is just to not ban Teemo, and play against him more often. I used to ban him so often, but now I know how to play him I can ban other champions who are much stronger instead.
Hopefully other people can help you with
:)
[poppy-wink]
This is a link to the Rank 6 on the Korean sever who is a
one trick that I "stalk" :)
I watch his all his games, and even though I have hardly seen
, keep an eye out for him, otherwise watching him vs matchups such as
can help you improve generally in the melee vs ranged matchup.
http://www.op.gg/summoner/champions/userName=누구를%20위한
Any constructive feedback is appreciated!!
Hopefully you will be able to beat Teemo more easily in the future because lets face it, he sucks right now after recent nerfs. (And he was weak before sadly ;-;)
If this helped you, help share to others and Upvote!