It really only comes up in baking.

Marg: I'm making tarts! 

Ben: Wha' kind of tarts? 

Marg: mixed berry 

Ben: mmmm 

Marg: you'll get one, no worries. They look pretty cute 

Ben: French toast muffins cute? 

Marg: yeah. Plus, some of them have designs on the top. little hearts and stars. 

Ben: Ha 

Marg: and a cock & balls. 

Ben: That one's mine! 

Marg: haha, deal 

Ben: Also: you don't say cock!! 

Marg: ha! why not? 

Ben: I'm not saying you can't. I've just never heard you say it. 

Marg: it really only comes up in baking.