A small deal is the opposite of a big deal. A small deal is something with nothing in comparison to anything else in the world except other small deals. You can recognize a small deal if you call them a small deal and they start to complain or cry or something like that. If you do call them a small deal make sure you are a big deal and not a small deal yourself.
Man 1: "Man that girl Makayla is such a freakin small deal!"

Man 2: "Yes, I know, good thing we are big deals or else I would have to kill myself"

Makayla: "Hey guys!"

Man 1: "Get out of here you small deal!"

Man 2: "Yeah!"

Makayla: *goes off and cries*
by OmegaCupcake March 25, 2010
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Used in replace of the phrase "No big deal" but in a new context referring to the rapper, Biggie Smalls, also known as the Notorious B.I.G.
Person A: "Dude, I just raped your sister."

Person B: "It's no biggie smalls deal."
by Parker&Ali December 28, 2010
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