pink periscope 

When you are sitting on top of another man's penis in a bathtub and yours is so erect it leaves the water, like a periscope.

I was on top of Matt, I got a pink periscope when he entered me.

pink periscope by Therein_Lies January 26, 2015

Down Periscope 

The act of going down on a woman only to ineptly go eye to ass. Generally associated with intoxication and accompanied by a case vicious pink eye the following morning.

Damn man, last time I was at your place o tried going down on my girlfriend and woke up the next morning with pink eye. Oh you mean a down periscope.

Down Periscope by Pink Eye Anonymous January 18, 2018

to Periscope 

the performance of a sexual act by either an active or receptive partner to the other, whereby the active partner is positioned supine and the receptive partner positions their anus above the mouth of the active partner forming an ‘L’ shape in profile. The act of periscoping requires the hands of the active partner to hold the thighs of the receptive partner and for the active partner to explore with their tongue the anus of the receptive partner with enthusiasm, as if viewing a far off land through the anus of the receptive partner.

When I return to London I want you to periscope me like you’ve discovered the Galapagos.

to Periscope by Yourmumcantcook December 28, 2020

to periscope 

the performance of a sexual act by either an active or receptive partner to the other, whereby the active partner is positioned supine and the receptive partner positions their anus above the mouth of the active partner forming an ‘L’ shape in profile. The act of periscoping requires the hands of the active partner to hold the thighs of the receptive partner and for the active partner to explore with their tongue the anus of the receptive partner with enthusiasm, as if viewing a far off land through the anus of the receptive partner.

When I return to London I want you to periscope me like you’ve discovered the Galápagos Islands.

to periscope by Yourmumcantcook December 28, 2020

Down Periscope 

Erection recession.

"O man Emily's smokin tonight, I'm chubbing up. Wait... here comes Martha. Down periscope."

Down Periscope by Jerk of Iron May 26, 2021

Leaky periscope

Name of a failed attempted sex act where your girl tried to give you some underwater and nearly died in your homies swimming pool.

My girl suffered a near death experience after utilising a leaky periscope.

Leaky periscope by WhiteboyBrad January 19, 2025

Leaky periscope

When underwater bj goes wrong and someone nearly died.

My girl nearly died because of a leaky periscope while trying to dome me in my homies pool.

Leaky periscope by WhiteboyBrad January 19, 2025