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An alternate, contemporary pronunciation to the word "silly."
Julia is such a silleh gurl.
silleh by WizKid May 3, 2008

Spillover Perks 

A perk enjoyed by a friend or family member that enables you to enjoy it as well because you know them or are related to them.
I go to the local bar and receive free beers because of the spillover perks of my sister dating the head bartender.
Spillover Perks by Skipper84 April 10, 2010

Spillonomics 

1. A scientific way to calculate the true costs of massive oil spills, such as the BP Deepwater Horizon disaster in the Gulf of Mexico.

Spillonomics was conceived shortly after the 1989 Exxon Valdez spill in Prince William Sound, Alaska. Sadly, it has become a major growth industry in the last 21 years.

Unlike other methods favored by the petroleum industry, Spillonomics takes into account both short-term clean-up costs AND long-term costs related to marine ecosystems, tourism, fishing, coastal employment, real estate values and water quality.

2. Dick Cheney's latest nightmare.
I'm majoring in Spillonomics. My uncle at Halliburton is livid. Serves him right!
Spillonomics by Peter Kobs June 1, 2010
Is an adorable little girl, that has the most sweetest expression on her face whenever, she has the most unique name I have ever heard in my whole entire life! There smart, cool, and funny. They always bring smiles to everyone, the hard times. And when theres nothing much to do but laugh, With a friend like Shillu around, your probably the luckiest person in the world.
<33
Have you met shillu yet? She is sooo cute, adorable, amazing.
shillu by teenabean3213 July 18, 2009

Spilling tea 

Telling the truth about something/someone to other people.
Kylie and Sarah are in a fight, Kylie spilled tea over Sarah saying Sarah stole her boyfriend. Everyone knows that Kylie was spilling tea.
Spilling tea by OpheliaBooks August 1, 2017
Fake participants in the street gambling card game, three-card monte. They are decoys who "play" and "win" to entice novices into playing and loosing their money, but they are actually in on the scam with the dealer.
One or two shills will usually be the first to enter a game of three-card monte.
Shill by Doyenne March 24, 2008