Meaning you must keep your composure in all situations.
Be tough.
Hailey : I miss you daddy -cries-
Dad : "Stiff upper lip." baby, we'll get through this.
by Nannerpus February 16, 2009
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An English term meaning to keep all your feelings bottled in
"You should be more open to people"

"I can't, I keep a stiff upper lip"
by strengthchip January 21, 2009
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Somewhat antiquated English saying, meaning that one must finish a task despite all odds.
by Daniel February 3, 2005
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Somewhat archaic English phrase meaning unwavering determination.

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.
by Rusty de la Serna November 7, 2008
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The act of ejaculating on a womans upper lip then freezing it, then you punch the frozen lip.
Arnold gave marrisa a stiff upper lip after she refused to make him a sandwich.
by meowwwwwwwwwwwwww11001152 April 19, 2011
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To be courageous or stoic in the face of adversity.
Even though he was only three years old, Jonathan keep a stiff upper lip the whole time he was in the hospital recovering from his surgery.
by sanjchy905 September 9, 2013
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When you are completely smashed and cannot see a damn thing with a mouth full of snuff.
by JBurke1017 December 27, 2019
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