the word layton, meaning penis, was thought of and created in the 18th century in Scotland.
Many women back in the 18th century believed that it was appropriate to call a mans penis layton, only if it was small or tiny.
If a woman in the 18th century saw a little penis, she would laugh and mock the penis calling it a layton.
Oh my goodness! i just saw my dads layton in the shower!
Now that i am a teenager, my layton has grown a few inches.