Then, she lathers up quickly and gives her "legs a quick shave." To lather, "lather," up (two words) means to put liquid on your body - soap or shampoo or what we would call shaving cream and move it back and forth - mix it with water until you have bubbles that cover your skin - this is to lather up - or covers your hair, to lather up with shampoo on your hair. Lucy lathers up and gives her "legs a quick shave." Shave, "shave," can be a noun and a verb. To shave means to remove hair from your body - from your skin. Lucy says she gives her "legs a quick shave." Women in the United States usually shave their legs - they get the hair off of their legs. They'll also shave under their arms, what we would call their armpit, "armpit." Your armpit is that space underneath your arm that connects your arm to the rest of your body. Men do not shave their legs; they do sometimes shave their face, or like me, shave their head.
n. 刮胡子,修面;削;刨花 v. 修面,剃(shave