Obnoxious way to interrupt someone and steal their moment, while wryly mocking that media train wreck that is Kanye West.

Based on West's instantly infamous interruption of Taylor Swift's acceptance speech at the 2009 MTV Video Music Awards for Best Female Video with his insane microphone-stealing shout out to Beyonce.
Bob: Thank you Mr. Brown for having us in to give this sales presentation. We'd like to talk to you today about...

Alfred: Yo, Bob, I'm really happy for you, and Imma let you finish, but I just got to say our product is is one of the best products there is!
by rickbrunernyc September 15, 2009
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What you say too look polite when you interupt someone, put them down, and are not going too really let them finish. Made famous by kanye west at the vma's when taylor swift won the award kanye wanted beyonce to win.
Host: The best female video goes to... Taylor Swift.
Taylor Swift: Thank you so much!! I always dreamed what it was going to be like winning one of these someday, but I never thought it wold actually happen. I sing country music, so thank you so much for giving me a chance too win a vma award--
Kanye West: Now Taylor, Im really happy for you, and imma let you finish, but Beyonce had one of the best videos of all time. One of the best videos of all time! (shrugs and walks away.)

~Later~
Obama: Jack ass.
by the poster of this word September 20, 2009
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A sexual act whereby a male oral sex recipient interrupts the woman in the middle of a blow job for the sole purpose of informing her of another woman's superior dome-giving abilities.
Yo stacy! I'm really happy for you and imma let you finish but kimberly gives the best blowjob of all time.. of ALL TIME!
by kanye2 September 18, 2009
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The way to describe yourself if your interrupting someone on stage
Kanye : Yo Taylor, Imma let you finish, but I just want to say that I am the greatest bitch of all time. OF ALL TIME!
by doosra1 September 22, 2009
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At the 2009 VMA's Kanye West interupted Taylor Swift, after she won the award for 'Best Female Video' by going on stage while she was in the middle of her acceptance speech and saying "Yo Taylor, Imma let you finish, BUT BEYONCE HAD ONE OF THE BEST VIDEOS OF ALL TIME"! Taylor Swift was left with a confused, and hurt expression on her face.
Yo Neil, Imma let you finish, BUT RUSSIA HAD ONE OF THE BEST SPACE PROGRAMS OF ALL TIME!!!!
Yo Haiti Imma let you finish, BUT NEW ORLEANS HAD ONE OF THE BEST DISASTERS OF ALL TIME!!!!
Yo 'Vampire Diaries' Imma let you finish, BUT EDWARD CULLEN WAS ONE OF THE BEST VAMPIRES OF ALL TIME!!!!
by LalaLazyyy:) September 29, 2010
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Phrase used to interrupt someone with no intent of letting them finish what they were going to say.

Also can be used to take away someone's crowning moment.

Coined by Kanye West in the 2009 MTV Video Music Awards Show.
God: And on the fifth day-

Kanye: Yo, God, this Creation thing is great, and Imma let you finish, but I just wanted to say, that Sega had the best Genesis of all time.
by Anonymous-ly September 17, 2009
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What Kanye West says when he has no intent on letting someone finish.
Imma Let You Finish, but Beyonce had one of the best videos of all time.
by Rorshock September 15, 2009
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