Parascope 

While one is relaxing in a hot tub with others, the act of poking the head of one's penis just above the surface of the water, like a submarine's parascope.

While Kerb was hot tubbing, he pulled the Parascope on his friends.

Parascope by Hoodness April 23, 2011

parascope 

When a male proceeds to drop his tescticles onto anoter persons eye sockets (consciousness is not an issue) and then place his erect penis on their forehead therefore making it look like the person is looking through a parascope

Man remeber at the party last night when you gave that brod the parascope when she passed out

parascope by Mattyosa October 31, 2007

the parascope 

n. a penis trick, while in a hot tub descretely remove your penis from your swimwear, then slowly raise your body until the tip of the penis has breached the surface to the surprise of the other hot tub residence.

Dude you are so gay! i can't believe you just did the parascope without warning me first.

Oh my god, we were in the hot tub with my parents and my boyfriend actually did the parascope!

the parascope by MB DUB February 22, 2006

Rusty Periscope 

The act of sitting on a girls face, with your balls resting on her eyes as if shes peering through the lens of a periscope, while she simultaneously jerks you off.

Jen is on her period this week, so I hopped on for a Rusty Periscope.

Rusty Periscope by Johnny Chimpo221 March 14, 2011

periscope fart 

When you press your butt against a hard, flat-surfaced chair and fart, but there is no place for the gas to escape except up the crack of your ass. and out at the top.

Dude, I laid the biggest periscope fart in detention. I press my butt cheeks against the hard chair and farted and the gas came bubbling up the crack of my ass and peeked out at the top!

periscope fart by Stagmen June 20, 2017

chocolate periscope 

When you take a giant dump and it's so big that the log sticks up out of the water like a chocolate periscope.

Dude come here I wanna show you my chocolate periscope!

What? Nooo Dude I'm not into men!

No you dork its in the toilet, check it out...

Duuuude that's awesome!!

chocolate periscope by minuccp February 20, 2011

Up periscope 

The act of hiding a random, uncontrollable boner by directing it upwards and binding it against your waist with your belt or pants waistband.

I had a boner that would just NOT GO DOWN, so I up periscoped it.

Up periscope by Sporklord February 19, 2011