These fit so well they should be in a dictionary.
ADULT: 
A person who has stopped growing at both ends and is now growing in the middle. 
BEAUTY PARLOR: 
A place where women curl up and dye. 
CANNIBAL: 
Someone who is fed up with people. 
CHICKENS: 
The only animals you eat before they are born and after they are dead. 
COMMITTEE: 
A body that keeps minutes and wastes hours. 
DUST: 
Mud with the juice squeezed out. 
EGOTIST: 
Someone who is usually me-deep in conversation. 
HANDKERCHIEF: 
Cold Storage. 
INFLATION: 
Cutting money in half without damaging the paper. 
MOSQUITO: 
An insect that makes you like flies better. 
RAISIN: 
Grape with a sunburn. 
SECRET: 
Something you tell to one person at a time. 
SKELETON: 
A bunch of bones with the person scraped off. 
TOOTHACHE: 
The pain that drives you to extraction. 
TOMORROW: 
One of the greatest labour saving devices of today. 
YAWN: 
An honest opinion openly expressed.
and MY Personal Favorite!! 
WRINKLES: 
Something other people have, similar to my character lines.