A "Bob" refers to the British nickname for a 1 shilling (5 pence) coin; thereby "Ten Bob" is a 50 pence coin. (Archaic: there was previously a Ten Bob Note)

Mostly used in South Yorkshire, England, a "Ten Bob Millionaire" is a derogatory term someone who dresses and acts like they have a lot of money and status when in fact they have very little (i.e. Ten Bob)

They buy things to make themselves look more important than they actually are. They act like they are important and have a very high opinion of themselves, while deeming other to be below them and beneath contempt.
"Look at him with his posh suit and catching a bus. Another ten bob millionaire!"

"She's all fur coat and no knickers; just a ten bob millionaire!"
by Beowyn June 25, 2014
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A person who pretends to have millions of pounds in the bank, but actually struggles to find a penny to scratch their ass with (A twopence halfpenny is the equivalent of pound sterling 2.5pence).

Usually walks around in fake designer clothes/clutching an imitation designer bag. Alternatively, they may have one genuine designer item with which they parade around with consistently. Can also apply to people who emphasise what they actually do have, or lie about what they have e.g. the size of their home/their earnings/the make of their car.
If being extremely stereotypical, it would be accurate to say that twopence ha'penny millionaires are usually insecure and rely on this behaviour to get attention or gain some credibility.
Girl 1: Ooooh, look at my new Louis Vuitton handbag, it cost £124930843025843
Girl 2: Hang on I swear you bought that out the back of that van in Turkey?
Girl 3: Yeah she did, she's not fooling anyone, she's just a twopence ha'penny millionaire
by samaralic December 11, 2013
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Tax-time millionaire -- (noun) a person who enjoys a season of "wealth" in the weeks immediately following receipt of a hefty tax refund check. This season of fleeting prosperity usually begins with a lavish cookout and is marked by the acquisition of "luxury" items such as: cars, clothes, the latest Air Jordans, jewelry, gold teeth, flat-screen TV's, living room furniture, home appliances, "good" weave, top-shelf liquor, and rims.
Did you see Donte and Keisha roll through just now in the Cadillac with the 26" rims?

Naw. They were just broke last week. When did they get a new car?

Man, they drove it off the lot today. They got a new washer and dryer and LCD TV, too. You know they are some tax-time millionaires.
by msgogether March 12, 2011
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1) The preppiest preppster around. One who dresses uniquely southern, and is classy as hell.

2) PSMs are often seen in Ivy League schools, Fraternity/Sorority houses, or at their local country club or yacht club.
Bro, did you see that Prep Star Millionaire at the party last night?

Yea, bow-tie and all.
by Gingerman843 April 21, 2010
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When a person knows a completely random fact/answer, and their knowledge of this has something to do with events in their past. (Note* may also result in telling a very long and seemingly unrelated story where the one fact/answer has no significance at all.)

Originated from the film Slumdog Millionaire, where moments such as these take up most of the movie.
(two guys are watching jeopardy)

guy1: WHAT IS THE IMPORTANCE OF BEING EARNEST!!!!!!
guy2:Dude, how the fuck did you know that?
guy1: You see in Freshman year of Highscho-
guy2:Holdup, I want nothing to do with your Slumdog Millionaire Moment
by soxorama July 21, 2009
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a slum dumb who tries to live the life of someone wealthy and cannot pay for it, but insists they can
He paid for everything last night, but when I called his cell today it was shut off so I know he is just a slum dumb millionaire.
by TerriC May 5, 2011
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Someone who thinks making 80k a year puts them in the ranks of CEO's and Rockefeller. Usually seen driving a leased low end, German model car, and living in a mortgaged out, 300-450k semi-custom tract home in a master planned suburb.
The Woodlands is full of 80k a year millionaires.
by HedgeFundGenius April 5, 2011
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