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1.
A term for a person who is facetiously joking about how important/cool/awesome they are.
"Yeah, so that was me closing a huge deal yesterday...I am kind of a big deal in commercial real estate!"
by rach BFD May 03, 2008
 
2.
A statement of arrogance and self-importance deliberately disguised as a humble, offhand observation. Usually delivered as the capstone line in a dialog peppered with other faux-humble socially-enhancing references intended to make you think the speaker is both cool AND humble. Attempts to accomplish with faux-humility what the Internet tough guy attempts to accomplish with raw force.

Hearing this line spoken in earnest is a clear indication you're probably dealing with a yuppie or hipster douchebag, as anybody who's actually a "big deal" lets their actions speak for themselves and doesn't need to mention it to strangers, even jokingly.

Since the original meaning has now been clearly identified as being douchey in the extreme, many people now use the phrase as a witty, ironic form of self-deprecation. The line between the two remains very grey and contextual, however; just because somebody's aiming for a humorous reaction doesn't mean they're not actually serious.
"So Bob, what do you do for work?"
"Oh, not much. I just do corporate law for Fnortner and Finch...gave me a corner office and a Jaguar last year. Got to meet Jude Law last week. Eh, I'm kind of a big deal over there, you know?"
"Oh wow! You're such a cool and humble dude!"
"Yeah, I know, right?"
by Arbus Carstairs June 27, 2014
 
3.
A saying commonly used for people who think they are a big deal but add 'kind of' to show they are sarcastic at the same time
"Matt Condon is kind of a big deal"

"I just got back from the gym, I'm kind of a big deal..."
by JNelson12 February 22, 2009
 
4.
was coined by Christian Siriano on Project Runway. and he is a big deal. <3 him
christian siriano - "I'm kind of a big deal!"
by the baddest ass September 15, 2009