When you're fingering a chick's vagina with 2 fingers you stick your thumb up her ass thereby forming a shark's mouth with your thumb and two fingers.
Ginnie was gettin' off by her man fingering her and suddenly she felt a thumb slide up into her ass giving her a sharkbite.
by TomCat70 October 30, 2009
Top Definition
When you are going down on a woman and discover she is on the rag and has a tampon string hanging out (see "ripcord"). Determined to eat her out, you take the string in your mouth and bite down, ripping it out with your teeth. After thrashing it back and forth a bit, you fling it over one shoulder with your mouth. In order to properly complete the shark bite, you must proceed with performing oral sex on the woman.
I discovered she was on the rag, but wanted to eat her out anyway. My only choice was to give her a shark bite. Boy, was she surprised.
by ESQ July 11, 2006
When in a position where a polite person would act against his/her own self-interest, you remain assertive for personal gain.
"Hey man, I wasn't sure whether or not you wanted a sandwich so I just got the one."
"Here, I'll take this one. You go get yourself another sandwich."
"What the...?"
"Sharkbite, bitch!"

"Lets cut to the chase -- There are two types of people, sheep and sharks."
by Dypsymphuliac December 25, 2009
When an individual (typically a guy) stealthily creeps up on a girl and bites her on the ass, making her jump in astonishment/pain. A ring of teeth marks signifies a good shark bite.
The shark bite was perfected by a rugby team in Flagstaff, AZ (the Landsharks), where numerous tickets/jail time have been delivered for such actions.
The Landsharks' fullback holds the record for the most shark bites given in one day -- 71.
by Johnny Kansas November 03, 2006
Non-chalant absurdity with a dash of embarrassment.
A guy is walking down the street in the East Village. A dog is tied up to a pole, waiting for his owner inside a cafe. The dog jumps towards the man and bites his crotch. The man jumps back and continues walking, ignoring the three people walking behind him that just witnessed this absurd situation. Sharkbite!
by nattiesays September 12, 2010
While giving your partner anal, at the moment of ejaculation bite her shoulder to make things even tighter!
I cumed like the thunder when i gave the wife a sharkbite last night...
by Billy Milly July 20, 2005
Taking a bite out of a FrozeFruit bar(by Bluebunny) or popsicle approaching from the side rather than from the top, which is the more conventional method here on Earth. A person may employ this technique to avoid someone elses frozen slobber(back-ice), or to sabotage the integrity of the frozen fruit bar's architecture....thereby, exposing the beneficial owner of the FrozeFruit bar to the catastrophic risk of a big mess.
Boy says to girl, "let me give that popsicle a haircut"
Girl hands her FrozeFruit bar(by Bluebunny) to boy and then says, "Dont shark bite it, bitch." Boy takes a shark-bite real fast and says "I don't want any of your back-ice." as he hands it back to the girl.
2 minutes later, whats left of the popsicle falls off of the stick onto the white carpet.
by Ace Binkley December 07, 2005
UK drinking term-

Basically a snake bite (lager / cider split) with a vodka or double vodka top. Not the for the weak or the part time drinker.
I had 4 pints of shark bite last night and I can't feel my body at all.
by black flag June 09, 2004
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