look up any word, like tbt:
 
1.
the soft portion of skin on the underside of the scrotum
"Aaron vigorously scratched his tiert with a steel brush."
by christopher cook June 23, 2005
 
2.
The urban word for tired.
Shiiiit, my mo fo ass is ti ert as a mother fucker. Shiiiiiiiiit.

Get your ti ert ass off my mother fuckin cowch bi-atch!!!!!!!!!!
by Chez Chizzle Minizzle April 27, 2003