Snapjacker 

n. Someone who intrudes upon, invades or disrupts - often covertly - the photograph of another. Snapjacking can be accomplished by facial expressions, hand signs or gestures, and in certain cases, handwritten signs.

See photobomber, photobombing

Nice vacation pics.

- Yeah, but some snapjacker ruined my two best ones. Fucker.

Snapjacker by toomuchflystyles July 14, 2011

Snapcrackerz 

SNAPCRACKERZ: Is a collaboration of many from all over the world.

SNAPCRACKERZ: best known as top hackers. The best the world has ever known!

Snapcrackerz by Snapcrackerz December 15, 2008

Swagjacker 

A person who steals somebody's characteristic style.

"That kid said 'radical!' Tim always says that."
"Wow that kid is a swagjacker."

Swagjacker by Teoy December 25, 2009

Starjacker 

Someone who steals your Starbucks coffee when you are recieving the drink at the pick-up line. Mostly harmless, but very annoying.

Some random Starjacker just stole my grande double shot Java Chip frappucino and went off with it, that bastard!

Starjacker by SexyChocolate April 4, 2008

snapjack

A quick masturbation session.

Damn, that snapjack was orgasmic

snapjack by bigbokchoy August 11, 2013

Snapbacked

To have crazy, wild sex with someone while wearing their snapback

Woah man, i snapbacked becky last night!

Snapbacked by forrrrreals August 21, 2011

snapjacking 

The challenge of attempting to ejaculate within the 10 second window of a snapchat.

Before opening snapchat, he gathered all of his supplies in order to attempt a successful snapjacking session.

snapjacking by z.x.c.v.b.n.m.a.s.d.f.g.h.j.k. April 20, 2014