A simile is a figure of speech in which one thing is compared with another things. Here are some common similes in English.
As crooked as a dog’s hind leg
If somebody is as crooked as a dog’s hind leg, they are dishonest.
No one will trust you if you are as crooked as a dog’s hind leg.
As fat as a pig
If somebody is as fat as a pig, they are very fat.
I must start dieting. I am as fat as a pig.
As gentle as a lamb
If somebody is as gentle as a lamb, they are very gentle.
The boy is as gentle as a lamb when his parents are around.
As gruff as a bear
If somebody is as gruff as a bear, they are very unsociable.
The lady next door is as gruff as a bear. She never invites people to her home.
As hungry as a bear
When you are as hungry as a bear, you are very hungry.
The boy was as hungry as a bear when he got home from school.
As innocent as a lamb
If someone is as innocent as a lamb, they are very innocent or naïve.
Everybody loves Julie. She is as innocent as a lamb.
As meek as a lamb
If somebody is as meek as a lamb, they are very quiet or docile.
As a teenager Frieda was as meek as a lamb. I still can’t believe that she has become an aggressive business woman.
As nervous as a cat
If somebody is as nervous as a cat, they are very nervous.
She was as nervous as a cat during the interview.