Example: After working with those old hand tools, power tools will make you feel like you are really cooking with gas.
Origin: Although common place today, gas stoves have not always been the norm. Gas stoves started to be available in the 1800's, and until that time wood stoves were the standard. Now you're "cooking with gas" comes from an old advertisement for gas stoves. The phrase suggests that gas is faster, easier, cleaner, better than cooking with wood.
Meaning: To be similar, usually in terms of behavior.
Example: You and your father are cut from the same cloth; fat, drunk, and stupid is no way to go through life son.
Origin: If you're making a suit, the jacket and trousers should be cut from the same piece of cloth to ensure a perfect match, since there may be differences in color, weave etc. between batches of fabric. Only if the whole suite is cut from the same piece of cloth can we be sure of the match.
Example: You will not lose weight until you give up chocolate, and I suggest you go cold turkey.
Origin: The expression originates from the goose bumps and palor which accompany withdrawal from narcotics or tobacco. One's skin resembles that of a plucked, cold turkey....
Example: Sit down, have a beer, and let's chew the fat.
Origin: The Inuit (different from Eskimos) used to chew on pieces of whale blubber almost like chewing gum. The blubber took quite a while to dissolve, so it just sort of helped pass the time while they were doing something else. Some other cultures may have used bacon fat in a similar way.