Top definition
Something you say when you find someone really attractive. Often used commenting on photos on the internet.
Girl: Omg, look at that guy!
GBF: Umf.
by tansjord933 January 20, 2012
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May 29 Word of the Day
Mercury retrograde is the act of taking a shit whilst mooning one or more human beings. Your day can typically being going well, according to your horoscope, until you are forced into witnessing Mercury retrograde. Performing Mercury retrograde will often speed the astrological cycle forward for the individual performing the Mercury retrograde, bringing about happy and fruitful times to come.
As the sun sank down over the pier, the children fishing gazed in horror as the lard-ass on his flat bottom boat sent the lakeshore into Mercury retrograde.
by BatWingg May 17, 2021
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Ultra Music Festival which is an anual Electronic Dance Music and is one of the most popular and most recognized EDM festivals where the mosf popular EDM Dj/Producers perform live to a massove crowd.
"I enjoyed UMF last year, it was so amazing."
by IndianGujaratiChristian July 16, 2014
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It's an abbreiation for the phrase "Ultimate Mind Fuck". It can have 2 possible meanings:

1. when 2 people unite mentally as well as physically during sex. This is implicated in the 1993 song "UMF" by Duran Duran. The terms "UMF" and "Ultimate Mind Fuck" are not in the lyrics.

2. brainwash, mass deceit, censorship, when several people (as in a cult or an entire nation) are mentally manipulated and hoodwinked and led astray by propaganda, corruption and outright lies and absolute bullshit.
1. Renee and Angela made love last night and experienced union in body and mind. They shared the UMF.

2. In the 90s decade there was a lot of New Age "solutions", shilling evangelists, superstitions, comet cult suicides, Y2K hysteria and other end-of-the-millenium bullshit. Then came the 00s with all its corruption, stupidity and shit and the Iraq war circus. That's one major UMF after another!
by I Saw U2 Live Twice January 25, 2011
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Example 1

*playing handball
Person 1 hits the ball out.
Person 2: Omg you suck at handball
Person 3: What a Umf

Example 2

*playing Volleyball
Person 1 spikes the net
Person 2: YOU UMF!
by thehanitio December 10, 2010
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Person 1:Omg you suck at handball
Person 2: What a Umf

*playing Volleyball
Person 1 spikes the net
Person 2: YOU UMF!
by thehanitio December 10, 2010
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