by Samuel Prewitt Jr. Dayton, Oh October 30, 2015

by Nannerpus February 15, 2009

by strengthchip January 21, 2009

by Daniel February 03, 2005

Somewhat archaic English phrase meaning unwavering determination.
Can also be used in a negative sense to describe general obstinacy or stubbornness.
Can also be used in a negative sense to describe general obstinacy or stubbornness.
Jimmy just won't give up until he is victorious. He's got a stiff upper lip.
Dude, leave her alone. She obviously isn't interested. That stiff upper lip is gonna get you in trouble.
Dude, leave her alone. She obviously isn't interested. That stiff upper lip is gonna get you in trouble.
by Rusty de la Serna March 22, 2009

by meowwwwwwwwwwwwww11001152 May 09, 2011
