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1.
A large black male penis.This name is usually known within the ethnicities that aren't black.
white women:ahhhhhhhhhhhhhhhhhhhhhhhhhhhhh
a taystayyy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mexican women: runnnnnnnnnnnn!!!!!!!!!!!!!!

Asian Women: Gai ic a Gai ic a!!!!!!!!!!!!
by TheLazyGenius January 13, 2010
 
2.
used to describe something that is more than delicious or just tasty.
a variant of tay-stehhh.
ooh that cream cake was so nice..it sure was TAY-STAY!
by laylaMUFFIN September 03, 2007