crumb sharking 

When your pet, usually a dog but not limited to dogs, follows you around to areas with food (kitchen, dinner table etc.) in hopes that a scrap of food will be dropped for their consumption.

Every time I’m in the kitchen, that dog follows me in crumb sharking around hoping for a treat.

crumb sharking by MacPherson McFly December 9, 2020

Sperm Sharking 

When a person masturbates in a concealed area like an alley, then rushes out to ejaculate on an unsuspecting passerby.

It can be done from a ceiling, a window, or the street. So long as it involves someone unexpectedly getting spermed on, it's sperm sharking.

Guy 1: Melody told me she was sitting in the park the other day, when this homeless guy came out of nowhere and jizzed on her clothes.
Guy 2: Jesus Christ!
Guy 1: Apparently it's called Sperm Sharking.
Guy 2: Why is that?
Guy 1: Cause of the whole unexpected Jaws thing. Du-dun du-dun...

Sperm Sharking by YouTubeWatcher March 25, 2009

hammerhead sharking 

When a male closes his eyes while undressed and waves their member back and forth, like a hammerhead shark, in an attempt to locate their mate.

Freddy undressed, closed his eyes, and began hammerhead sharking to find Judy through electroreception.

hammerhead sharking by GZX959 December 29, 2015

Sarging 

Verb; to Sarge.
The act of engaging conversational rapport with a complete stranger.
Though tied to the seduction community as the official name for being "on the hunt," the term also applies in business and interpersonal relations, as the act of appearing as a socially versatile and competent person.

Credit to Ross Jeffries, who claims to have named the act after his cat.

in seduction:
"My wingman and I went sarging last night at club X."

other:
"The goal in business is to sarge your coworkers as soon as you start working there. It's a quick way to appear competant!"

Sarging by Shertz August 24, 2006

Party Sharking 

The act of holding a cardboard shark fin between your butt cheeks and being crowd surfed.

1- We're playing beer pong at my place tonight, what are you doing?
2- We're Party Sharking at my house.
1- Oh, screw beer pong then, I'll be over at 10 with my cardboard shark fin decorated with assorted arts and crafts.

Party Sharking by JDigglesby September 28, 2009

Leap Sacking 

When playing leap frog, it is the act of dragging ones nuts across the back of the other player's neck and head.

Letharian: Do you wanna play leap frog?

Equivel: No dude, everytime we do that you always end up leap sacking me.

Letharian: I know.

Leap Sacking by Baron Von Redberry October 30, 2010

Sparking 

The act of two males rubbing penises together to simulate two sticks attempting to start a fire.

I have a serious blister from sparking with Arnold last night.

Sparking by Shaft12345 July 5, 2018