Грудь is a feminine noun that means bosom in the sense of chest or breast(s). It's mostly used in the singular, even when talking about women's breasts. Although sometimes you'll hear people stress the word a bit differently in the singular, the most common stress pattern for the noun is:

Sample sentences:

Грудь is also used as a symbol of the center of one's feelings and desires just as heart is used in English:

The Russian word for leg is нога. Just as рука means both hand and arm in Russian, so also нога means both leg and foot. Interestingly enough, it's stress pattern is identical to that of рука:

My favorite idiom with this word is (с)делать ноги, which means to flee, run away, haul ass. Well, no, it's not as vulgar as “haul ass,” but you get the idea. Examples:

Я бы на его месте делал ноги, пока не поздно. (source)	In his place I'd get out of there before it's too late.
Говорят, что каждого нового ухажёра Наоми быстро начинала звать своим "мужем", строить планы на будущее, говорить о детях… И вскоре после этого мужчина обычно делал ноги. (source)	They say that Naomi [Campbell] would quickly start calling each new suitor her “husband” and start planning for the future, talking about children… And right after that the man would take to his heels.
Недавно жили две мышки домашние в клетке. Одна умерла, а вторая сделала ноги куда-то к соседям. Теперь я совсем одинокая . (source)	Not long ago [I had] two pet mice living in a cage. One died, and the other ran off to some neighbors' house. Now I'm all alone.
Сама же Германия с конца 1944 года лишь делала ноги, панически отступая от Красной Армии. (source)	Germany itself began to flee at the end of 1944, retreating before the Red Army in a panic.

The words левша and правша mean leftie (a left-handed person) and rightie (a right-handed person) respectively. The former declines like this:

The word правша declines precisely the same way. A few example sentences:

Though every beginning student of Russian knows that there are masculine nouns and feminine nouns, not every student knows that there are common gender nouns as well, and among them are левша and правша. A common gender noun is one that takes masculine adjectives if referring to a man and feminine adjectives if referring to a woman. Thus one could theoretically say:

Simlarly if a common gender noun is the subject of a sentence, it induces masculine agreement in the verb if the noun refers to a man and feminine agreement if the noun refers to a woman. Thus, though not a common thing to say, one could theoretically say:

The word for jaw in Russian is челюсть, which is a feminine noun. Not too surprisingly, the movie “Jaws” was translated into Russian as «Челюсти».

Doubtless the most famous historical incident involving a jaw is Samson's slaying of the Philistines:

Sometimes your neck and head can hold a lot of tension, in which case you should take the following advice:

When you combine челюсть with the adjective вставная “insertable” or съёмная “removable,” it means denture:

Oh, the horror! Oh, the humanity! Actually, when I read things like this in Russian, I'm encouraged: it proves that not it's not just we Americans who can be shallow beyond words.

Ушная сера means earwax, and a glob of that stuff that impedes your hearing is called ушная пробка “an ear clog.” Often the Russians will simply leave out the ушная part and just say сера or пробка. I really couldn't care less about this phrase, but the other day one of my students was given an assignment to write a bunch of phrases starting with «спасибо за» “thanks for,” and he came up with:

The phrase is grammatically perfect, so I can't take off any points. But by God, for that kind of disrespectful composition, I'm surely going to stiff him on his final grade, подлец the bum.