Example:
Eddie: Hang on, hang on hang on hang on. I've got your real present here.
Richie: It's a piece of paper. It is a small piece of paper.
Eddie: Read it.
Richie: "Madame Swish, three-thirty." Oh! Eddie! You haven't? Oh, what a pal you are. "Madame Swish". Ooh-err! Hohh, God, at last I'm really going to do it. And on my birthday as well! Ohhhggh, I wonder what she's like?
Eddie: She's a dead cert mate, a real stayer.
Richie:Really?
Eddie:Yeah, she'll come first.
Richie: What, before me? Good grief, that's quick. So she'll think I'm
great! Oh, what a pal you are! And it's all paid for?
Eddie: Um, not exactly, I need a tenner.
Richie: A tenner. Right. That's quite cheap, isn't it?
Eddie: Er, well, no, in that case it's a tenner each way.
Richie: Well, how many ways are there?
Eddie: Well, you'll come first, second or third, won't you?
Richie: Well how many people are going to be there?
Eddie: Well, a few thousand.
Richie: What?
Eddie: Well it's Kempton.
Richie:Kempton? I can't get down to Kempton by three-thirty!
Eddie: You don't have to mate, it'll be on the telly!
Richie: They're going to televise it? Well what if my auntie's watching?
Eddie: Well what's illegal about betting on a horse?
Richie: A horse?
Eddie: Yeah.
Richie: Madame Swish is, is, is a horse?
Eddie: Yeah! Well what did you think it was?
Richie: Oh no, nothing, nothing. Just checking.
Eddie:I have given you a red hot tip.
Richie: (looks at his crotch) I know, and there's nothing I can do about it now, is there!

Example:
Dr. Evil: By "Caliber", I mean both the size of their gun barrels and the high quality of their character...it's a homonym.

Number Two: No, Dr. Evil. It's called a "double entendre".

Dr. Evil: SILENCE, NUMBER TWO!!

(Number Two falls into a firy pit)

Number Two: AAAHHHHHH!!!

Example:
a double entendre in everyday life.

Female customer at shop: Can I have a bag for that please?
Me working on register: Do you want a regular sized one or a huge one?
Customer: I want a huge one.
Me: I've got a huge one for you.

Example:
That was a double entendre!
I know, man, I know!
There were TWO entendres!

Example:
~OFFICER: "Why did you try to do that to the girl in the bar, sir? Can't you see she's far too young for you?"
-DRUNK MAN: "Well, she was old enough to be in a bar, wasn't she?"
~"She told the waitress she was in school, but she didn't elaborate."
-"University? Community college?"
~"No, as it turns out."
-"Trade school, then? High school?"
~"Elementary, my dear pervert. Now get in the patrol car."

(Also: See ringhorne definition of diet, the example used there suits this.)

Example:
Annie: Oh, hashmeer. I would like you to do things to me like the sun and the moon
Hashmeer: No Annie, no time
annie: Can we just do a simple double entendre
Hashmeer: Oh Annie I just want, you know what, all i have time for is double entendre
Annie: okay lets do da damn thang

Example:
An unintentional double entendre that happened to me at work

Me working at store: Do you want me to put that in a bag?
Female customer: Yes please.
Me: Do you want a regular sized one or a huge one?
Customer: I want a huge one, do you have a huge one?
Me: Oh, I've got a huge one alright.

Example:
Hannibal Lecter: I do wish we could chat longer, but... I'm having an old friend for dinner. Bye.

(A double entendre because Hannibal is actually having- as in eating- a friend for dinner, instead of just having a friend over to eat dinner together)

Example:
"A woman walks into a bar and asks for a double entendre, so the barman gives her one."

"Take off you pants and jacket (jack it)"