I propose we call it 'pop-up penis'.

I call this move the penis pendulum

NSFW penis pop chapter 3, it was like a grain of risotto rice

*NSFW* PENIS, SHAFT, GENITALS. Small pop on my SO penis from

Pop goes the penis

Monthly pop at the top of my penis NSFW

look at mommy's dick and look at yours... how many inches does

You call that a penis? more like useless!

What is that pathetic thing? Don't tell me you call that a penis.

What is that pathetic thing? Don't tell me you call that a penis.

What is that pathetic thing? Don't tell me you call that a penis.

Penis “Flexing” - Making My Penis Move (Sorry, don’t know