Idioms.Parts of human body

from  http://www.tolearnenglish.com 

IDIOM 1: "bad-mouth"-> MEANING: say bad things about someone -> EXAMPLE: The football players are always bad-mouthing their coach. IDIOM 2: "curl one's hair" -> MEANING: shock, frighten, horrify -> EXAMPLE: The movie is very realistic and many of the scenes will curl your hair.  IDIOM 3: "keep one's head"-> MEANING: stay calm when there is trouble or danger -> EXAMPLE: Everyone tried to keep their head during the fire at the hotel. IDIOM 4: "pick the brains of"-> MEANING: get ideas or information about something by asking an expert -> EXAMPLE: We picked the brains of the official who was sent to talk about the pollution problem. IDIOM 5: "keep one's chin up" -> MEANING: be brave, be determined, face trouble with courage -> EXAMPLE: My brother is trying to keep his chin up even though he has lost his job.