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When you are going insanly fast in Mario kart 8.
by Mario_man January 05, 2019
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2
Abbreviation for "First initial plus last name".

Commonly used in IT departments.
Example: Welcome to Widgets Inc. Your email address will be flast@widgets.com, where f is your first initial and last is your last name.

Example: Hey IT department, we just hired Joe Schmidt, please set up his new user account on the server, his flast is jschmidt.
by IT Ninja July 09, 2010
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3
To be the first, and the last, to do something, reach a milestone, or achieve historic success.
President John f Kennedy was the Flast Catholic president, while Barack Obama is the Flast black president.
by Danman73 July 04, 2016
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4
Young, intellectual Christian poon.

Church group middle school females.

Abbreviated YICP with no periods because they're not old enough for them yet.
by Jebus 706 September 15, 2007
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5
when you can't make babies any more.
My dad is flast.

Kyle got a vasectomy and now he is completely flast and his sack hurts.
by T4T3 August 15, 2008
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