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.

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:

A 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 Favourite!

WRINKLES:

Something other people have,

Similar to my character lines.