To do something adequately, or even in an exemplary manner, without necessarily seeking or receiving attention/praise for one's acts. While Left Shark is shaking (or messing) things up, Right Shark is over there making sure things go smoothly.
A: "Man, the bathrooms are spotless! Did you clean them?"
B: "It was C I think, but I never heard anyone ask him to clean up in there."
A: "Huh... I was talking to him earlier and he didn't even bring it up. Dude's so Right Shark, he should totally get a raise."
"Hey the landlord's coming over to show the house to someone today. I'm working a double today, but could you be a Right Shark and tidy up before he gets there? Thanks!"
"Wanna be my wingman when we go out tonight? Last week Jeff Left Sharked it before I could get that girl's number. You've rightsharked for me at this in the past though, so I trust you."
another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.