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A person that falls or trips frequently.

Someone that injured themselves by falling or tripping.
pointing out the arrival of someone who recently hurt themselves in a fall-

"Oh look, here comes Stumblefuck"
by Sly Fox Ash July 28, 2009
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May 14 Word of the Day
Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy
Person A: Man, that nutcase Martin Bryant guy shot 35 people in Tasmania!

Person B: No, he wasn't a nutcase, that was just a psyop so the government could have an excuse to ban guns.
by Mystikan April 11, 2006
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2
The act of being so drunk you cant stand up or talk.
Look at that guy, he's all stumblefuck.
by menardo April 02, 2003
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3
A series of assumptions that start with "I think" which is twisted to "it's a fact".
When an uneducated opinion starts with "I don't think he's a racist" and turns to fact, "I know for a fact that he's not a racist". Then it's time to label the offending fucktard a "Stumble-fuck".
by Aztecsghost April 16, 2010
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4
When you can't get a word out ya mouth to save ya own ass.
Jason kept stumble fucking around when he was trying to tell his story
by Real McCoy January 18, 2020
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