Periscope 

When the tip of a recently erect penis peeks over the waistband of underwear, shorts or swim trunks.

I was at the beach and saw Jeanie and got a boner that turned into a periscope. Luckily, no one saw.

Periscope by brokenresearch August 19, 2013

down periscoping 

pushing your penis downwards to enable penertration into a female laid on her back with legs behind her ears.

down periscoping has to be tried

down periscoping by paul johns December 15, 2004

Periscope 

When the end of an exceptionally long turd sticks straight up out of the water.

Similar to a "breach" (where the turd will arch up out of the water) but fully vertical.

Both of which, really really stink.

Dude, I just totally dropped a periscope in there.

Periscope by h.karl February 20, 2010

Cock Periscope 

When you stick your penis out of the sunroof of a moving car.

Sometimes when I get bored my friends and I drive around and cock periscope everyone.

Cock Periscope by jhix July 25, 2016

Mistress Periscope 

A state of desire and need for the addiction of the social media app called Periscope. Created by therealbookbabe , the term mistressperiscope eludes to the need and secrecy to continue interacting with the app even though it's destroying your life

MISTRESS PERISCOPE will steal your soul if you pay more attention to her than your partner or life responsibilities

Mistress Periscope by La Reigna👑 November 12, 2019

Periscoping 

Periscoping is an advanced, but non-sexual form of spooning. Unlike being the big spoon or the inverse, little spoon/backpack/jetpack, both partners share equal responsibility. To periscope, one partner lines their dominant eye with the second partner's butthole, and 'peers through the scope.' At the same time, the second partner 'shades their eyes from the sun,' and shouts, "Land ho!"

She was really chill. We hooked up, spooned a bit, and then we tried periscoping it out. Anyway, that's how I got pink eye.

Periscoping by Perry Scope November 4, 2020

periscope 

signing on AIM, checking if your stalking target(s) is there, and signing off if she's not, giving the appearance of a periscope breaking the surface and submerging again

It's damn creepy how Ben periscopes for Martina every night after their breakup.

periscope by BMDubbs January 11, 2008