When you ring a random person's doorbell, flash them, and run away very fast afterwards
"911 what's your emergency?"
"Somebody just ding dong dicked me"
"Ma'am, this line is for emergencies only"
*line disconnects*
The timeline of a male's penis as he grows up.
Alright everyone, today in health class we will cover male puberty. Now, the process of penis growth goes ding dong dick; ding referring to before puberty, dong referring to midway through puberty, and finally arriving at dick once the male is roughly 20 years old.