Explanations

WHEREVER I TOUCH= Any place where I touch, everywhere I touch.
We can make compounds with interrogative words (wh-words) + -EVER with the meaning of "no matter wh...":
whoever- no matter who, anybody. You can marry whoever you want.
whenever- no matter when, any time. Come to my house whenever you need help.
So we can say: whoever (anybody), whatever (anything), whichever (anything), wherever (anywhere), whenever (any time), however (any manner).
WHAT DO YOU MEAN? = We say this when we don't understand well what someone said and we want him to explain, to be more specific.
HURT= If something hurts, you feel pain there.
OUCH!= The most common exclamation of pain. We can also say "ough" (pronounced like the diphthong in HOUSE).
FOREHEAD= The correct pronunciation was /fɔ:rɪd/, but today, the pronunciation suggested by the spelling is getting more and more common (/fɔ:*hed/).
I KNOW WHAT'S WRONG= I know what the problem is.
YOU'VE BROKEN YOUR FINGER= We use the present perfect (have + past participle) when we talk about a present situation caused by a past action. The action here is "break", which happened in the past, but we're not interested in the past, we're talking about the present (your finger is broken). Since we are referring to the past and the present, we use the present perfect (perfect tenses refer to the past).